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Finding the Fourth Proportional to 71,002.88, 97,966.50 and 43,400.57

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Solution

The fourth proportional to 71,002.88, 97,966.50 and 43,400.57 is: 59,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,002.88 : 97,966.50 = 43,400.57 : x
  2. Step 2: Convert to fraction form
    71,002.88/97,966.50 = 43,400.57/x
  3. Step 3: Cross multiply
    71,002.88x = 97,966.50 × 43,400.57
  4. Step 4: Simplify right side
    71,002.88x = 4,251,801,940.91
  5. Step 5: Solve for x
    x = 4,251,801,940.91/71,002.88
  6. Step 6: Final answer
    x = 59,882.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.