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Finding the Fourth Proportional to 71,120.08, 106,747.08 and 36,084.88

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Solution

The fourth proportional to 71,120.08, 106,747.08 and 36,084.88 is: 54,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.08 : 106,747.08 = 36,084.88 : x
  2. Step 2: Convert to fraction form
    71,120.08/106,747.08 = 36,084.88/x
  3. Step 3: Cross multiply
    71,120.08x = 106,747.08 × 36,084.88
  4. Step 4: Simplify right side
    71,120.08x = 3,851,955,572.15
  5. Step 5: Solve for x
    x = 3,851,955,572.15/71,120.08
  6. Step 6: Final answer
    x = 54,161.29

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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.