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Finding the Fourth Proportional to 216,459.60, 324,691.56 and 58,691.04

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Solution

The fourth proportional to 216,459.60, 324,691.56 and 58,691.04 is: 88,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,459.60 : 324,691.56 = 58,691.04 : x
  2. Step 2: Convert to fraction form
    216,459.60/324,691.56 = 58,691.04/x
  3. Step 3: Cross multiply
    216,459.60x = 324,691.56 × 58,691.04
  4. Step 4: Simplify right side
    216,459.60x = 19,056,485,335.62
  5. Step 5: Solve for x
    x = 19,056,485,335.62/216,459.60
  6. Step 6: Final answer
    x = 88,037.15

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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.