Account Derivation Rule

I have an SLA question, more precisely a Account Derivation Rule question I hope anyone can help me with.   
I ran across an issue in Receivables when doing a cash receipt; the bank account is tied one balancing segment and the receivable account is tied to another.  The client doesn't want to setup intracompany accounting, but would like to change the balancing segment on the cash side of the entry to match the receivable side of the entry.
 
So, what I am trying to do is override/replace the balancing segment on the cash account with the balancing segment from the receivable account.