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Finding the Fourth Proportional to 67,911.72, 101,841.66 and 36,729.96

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Solution

The fourth proportional to 67,911.72, 101,841.66 and 36,729.96 is: 55,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,911.72 : 101,841.66 = 36,729.96 : x
  2. Step 2: Convert to fraction form
    67,911.72/101,841.66 = 36,729.96/x
  3. Step 3: Cross multiply
    67,911.72x = 101,841.66 × 36,729.96
  4. Step 4: Simplify right side
    67,911.72x = 3,740,640,098.13
  5. Step 5: Solve for x
    x = 3,740,640,098.13/67,911.72
  6. Step 6: Final answer
    x = 55,080.92

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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.