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Finding the Fourth Proportional to 332,139.40, 498,209.10 and 132,356.95

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Solution

The fourth proportional to 332,139.40, 498,209.10 and 132,356.95 is: 198,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,139.40 : 498,209.10 = 132,356.95 : x
  2. Step 2: Convert to fraction form
    332,139.40/498,209.10 = 132,356.95/x
  3. Step 3: Cross multiply
    332,139.40x = 498,209.10 × 132,356.95
  4. Step 4: Simplify right side
    332,139.40x = 65,941,436,938.25
  5. Step 5: Solve for x
    x = 65,941,436,938.25/332,139.40
  6. Step 6: Final answer
    x = 198,535.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.