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Finding the Fourth Proportional to 92,874.60, 139,311.90 and 88,141.47

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Solution

The fourth proportional to 92,874.60, 139,311.90 and 88,141.47 is: 132,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.60 : 139,311.90 = 88,141.47 : x
  2. Step 2: Convert to fraction form
    92,874.60/139,311.90 = 88,141.47/x
  3. Step 3: Cross multiply
    92,874.60x = 139,311.90 × 88,141.47
  4. Step 4: Simplify right side
    92,874.60x = 12,279,155,132.07
  5. Step 5: Solve for x
    x = 12,279,155,132.07/92,874.60
  6. Step 6: Final answer
    x = 132,212.20

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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.