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Finding the Fourth Proportional to 354,691.76, 532,126.76 and 101,972.72

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Solution

The fourth proportional to 354,691.76, 532,126.76 and 101,972.72 is: 152,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,691.76 : 532,126.76 = 101,972.72 : x
  2. Step 2: Convert to fraction form
    354,691.76/532,126.76 = 101,972.72/x
  3. Step 3: Cross multiply
    354,691.76x = 532,126.76 × 101,972.72
  4. Step 4: Simplify right side
    354,691.76x = 54,262,413,101.99
  5. Step 5: Solve for x
    x = 54,262,413,101.99/354,691.76
  6. Step 6: Final answer
    x = 152,984.70

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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.