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Finding the Fourth Proportional to 93,691.41, 129,314.30 and 59,691.78

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Solution

The fourth proportional to 93,691.41, 129,314.30 and 59,691.78 is: 82,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,691.41 : 129,314.30 = 59,691.78 : x
  2. Step 2: Convert to fraction form
    93,691.41/129,314.30 = 59,691.78/x
  3. Step 3: Cross multiply
    93,691.41x = 129,314.30 × 59,691.78
  4. Step 4: Simplify right side
    93,691.41x = 7,719,000,448.00
  5. Step 5: Solve for x
    x = 7,719,000,448.00/93,691.41
  6. Step 6: Final answer
    x = 82,387.49

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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.