How can I use the join condition for this query?

Hi, i am using a query which has a sun query in it, wen i am running tat query it is giving 9332 records, I changed the sub query logic and given an inner join, but it is giving only 4476 records. So, I changed it to left join but it is giving more records than usual now, say 10033 records.

This is the code which is giving records 9332, which is correct

select      distinct 
      b.SRC_PROV_ID
      ,COALESCE(a.SYSTEM_NAME, a.CTRCT_GRP_NAME, a.PROV_SMG_NAME) AS SYSTEM_NAME
INTO  TINtoSystem
from 
      RARE.dbo.EDW_MASTER a 
      Inner Join RARE.dbo.EDW_PROD_ID_XREF b 
            on a.SMG_ID = b.SMG_ID 
 where SRC_PLATFORM_CD = 'TX' 
      and a.SMG_ID in 
            ( 
            select distinct 
            SMG_ID 
            from RARE.dbo.EDW_PROD_ID_XREF 
            where SRC_PLATFORM_CD = 'TX' 
            and SRC_PROV_ID in (select q.PROV_TAX_ID from PACT.dbo.SQS_EDW_Source q) 
            );

I have changed this code by giving inner join as, but its not giving the exact records of 9332, 

select      distinct 
      b.SRC_PROV_ID
      ,COALESCE(a.SYSTEM_NAME, a.CTRCT_GRP_NAME, a.PROV_SMG_NAME) AS SYSTEM_NAME
INTO  TINtoSystem
from 
      RARE.dbo.EDW_MASTER a 
      Inner Join RARE.dbo.EDW_PROD_ID_XREF b 
            on a.SMG_ID = b.SMG_ID 
      Inner Join Pact.dbo.SQS_EDW_Source q 
			on b.SRC_PROV_ID = q.PROV_TAX_ID
		where b.SRC_PLATFORM_CD = 'TX'      

Can anyone tell, where it is missing, I used left join also but its giving more records then, need help