Given the following history, use a three-quarter moving average to forecast the demand for the third quarter of this year. Note that the 1st quarter is Jan, Feb, and Mar; 2nd quarter Apr, May, Jun; 3rd quarter Jul, Aug, Sep; and 4th quarter Oct, Nov, Dec.

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Last year This year JAN FEB MAR APR 100 125 135 175 125 135 135 190 MAY JUN JUL 185 150 200 200 190 AUG 140 130 200 SEP Ост Nov DEC 225 250