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Finding the Fourth Proportional to 71,963.12, 107,951.88 and 22,042.64

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Solution

The fourth proportional to 71,963.12, 107,951.88 and 22,042.64 is: 33,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963.12 : 107,951.88 = 22,042.64 : x
  2. Step 2: Convert to fraction form
    71,963.12/107,951.88 = 22,042.64/x
  3. Step 3: Cross multiply
    71,963.12x = 107,951.88 × 22,042.64
  4. Step 4: Simplify right side
    71,963.12x = 2,379,544,428.16
  5. Step 5: Solve for x
    x = 2,379,544,428.16/71,963.12
  6. Step 6: Final answer
    x = 33,066.17

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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.