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Finding the Fourth Proportional to 91,952.60, 137,737.54 and 88,780.28

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Solution

The fourth proportional to 91,952.60, 137,737.54 and 88,780.28 is: 132,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,952.60 : 137,737.54 = 88,780.28 : x
  2. Step 2: Convert to fraction form
    91,952.60/137,737.54 = 88,780.28/x
  3. Step 3: Cross multiply
    91,952.60x = 137,737.54 × 88,780.28
  4. Step 4: Simplify right side
    91,952.60x = 12,228,377,367.71
  5. Step 5: Solve for x
    x = 12,228,377,367.71/91,952.60
  6. Step 6: Final answer
    x = 132,985.66

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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.