The average of the numbers A, B, and C is 184, and the number D is 64. What is the average of the four numbers?
甲、乙、丙三数的平均数为184，丁数为64，四个数的平均数是多少？
<gadget id="calculator">184 * 3</gadget>
<output>552</output>

<gadget id="calculator">552 + 64</gadget>
<output>616</output>

<gadget id="calculator">616 / 4</gadget>
<output>154</output>

<result>154</result>