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Providing for Doubtful Accounts At the end of the current year, the accounts receivable account has a debit balance of $644,000 and sales for the year total $7,300,000. a. The allowance account before adjustment has a credit balance of 58,700 . Bad debt expense is estimated at 3/4 of 1 of of sales. b. The allowance account before adjustment has a credit baiance of $8,700. An aging of the accounts in the customer ledger indicates estimated doubtful accounts of 527,600. c. The allowance account before adjustment has a debit balance of 56,500 . Had deht expense is estimated at 1/4 of 1%5 of sales. d. The allowance account before adjustment has a debat balance of 56,500 . An aging of the accounts in the custemer ledger indicates estimated doubthit accounts of 154,000. Determine the amount of the adjuming entry to provide for doubthul sccounts under each of the assumptions (a through d) listed above. a. 1x b. 4x c. 5x d. 5x