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Finding the Fourth Proportional to 249,658.17, 374,489.98 and 72,166.71

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Solution

The fourth proportional to 249,658.17, 374,489.98 and 72,166.71 is: 108,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,658.17 : 374,489.98 = 72,166.71 : x
  2. Step 2: Convert to fraction form
    249,658.17/374,489.98 = 72,166.71/x
  3. Step 3: Cross multiply
    249,658.17x = 374,489.98 × 72,166.71
  4. Step 4: Simplify right side
    249,658.17x = 27,025,711,414.42
  5. Step 5: Solve for x
    x = 27,025,711,414.42/249,658.17
  6. Step 6: Final answer
    x = 108,250.86

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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.