Before year-end adjusting entries, Coronado Industries's account balances at December 31, 2020, for accounts receivable and the related allowance for uncollectible accounts were $1480000 and $78800, respectively. An aging of accounts receivable indicated that $124000 of the December 31 receivables are expected to be uncollectible. The accounts receivable amount expected to be collected after adjustment is $1401200. $1356000. $1434800. $1277200.