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Finding the Fourth Proportional to 92,531.60, 138,854.51 and 36,361.85

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Solution

The fourth proportional to 92,531.60, 138,854.51 and 36,361.85 is: 54,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,531.60 : 138,854.51 = 36,361.85 : x
  2. Step 2: Convert to fraction form
    92,531.60/138,854.51 = 36,361.85/x
  3. Step 3: Cross multiply
    92,531.60x = 138,854.51 × 36,361.85
  4. Step 4: Simplify right side
    92,531.60x = 5,049,006,645.42
  5. Step 5: Solve for x
    x = 5,049,006,645.42/92,531.60
  6. Step 6: Final answer
    x = 54,565.21

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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.