Suppose four industries each manufacture a different product, although each needs the others' goods to produce its own. Moreover, suppose some of each manufacturer's production is consumed by individuals outside the system. Current internal and external consumptions are given in Table 1 below, but it has been forecast that consumer demand will change in the next several years and that in 3 years consumers will demand 60 units of product R, 110 units of product S, 60 units of product V, and 50 units of product W. Find the total output needed to be made by each industry to meet the predicted demand. Table 1 Amounts Consumed R S V W Consumer (C) Total (X) R 30 20 60 40 90 240 Amounts S 48 40 20 20 72 200 Produced V 30 50 20 40 60 200 W 60 20 30 20 30 160