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Finding the Fourth Proportional to 92,343.57, 138,459.87 and 36,116.61

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Solution

The fourth proportional to 92,343.57, 138,459.87 and 36,116.61 is: 54,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,343.57 : 138,459.87 = 36,116.61 : x
  2. Step 2: Convert to fraction form
    92,343.57/138,459.87 = 36,116.61/x
  3. Step 3: Cross multiply
    92,343.57x = 138,459.87 × 36,116.61
  4. Step 4: Simplify right side
    92,343.57x = 5,000,701,125.44
  5. Step 5: Solve for x
    x = 5,000,701,125.44/92,343.57
  6. Step 6: Final answer
    x = 54,153.21

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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.