A purchaser bought 72 identical water buckets, but accidentally lost the invoice. He only remembered that there was 67 yuan and 9 cents in the payment, but he couldn’t remember the hundreds and the cents. Please help him figure out what to buy the buckets for. How much did you pay?
一位采购员买了72只同样的水桶，不慎将发票丢失，只记得付款中有个67元9角，但几百和几分记不清了，请你帮他算一算买水桶用了多少钱？
<result>367.92</result>