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Finding the Fourth Proportional to 67,269.62, 92,159.84 and 64,747.28

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Solution

The fourth proportional to 67,269.62, 92,159.84 and 64,747.28 is: 88,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,269.62 : 92,159.84 = 64,747.28 : x
  2. Step 2: Convert to fraction form
    67,269.62/92,159.84 = 64,747.28/x
  3. Step 3: Cross multiply
    67,269.62x = 92,159.84 × 64,747.28
  4. Step 4: Simplify right side
    67,269.62x = 5,967,098,965.24
  5. Step 5: Solve for x
    x = 5,967,098,965.24/67,269.62
  6. Step 6: Final answer
    x = 88,704.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.