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Finding the Fourth Proportional to 198,996.71, 274,601.58 and 112,957.43

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Solution

The fourth proportional to 198,996.71, 274,601.58 and 112,957.43 is: 155,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,996.71 : 274,601.58 = 112,957.43 : x
  2. Step 2: Convert to fraction form
    198,996.71/274,601.58 = 112,957.43/x
  3. Step 3: Cross multiply
    198,996.71x = 274,601.58 × 112,957.43
  4. Step 4: Simplify right side
    198,996.71x = 31,018,287,377.73
  5. Step 5: Solve for x
    x = 31,018,287,377.73/198,996.71
  6. Step 6: Final answer
    x = 155,873.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.