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Finding the Fourth Proportional to 59,716.92, 82,231.59 and 58,390.95

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Solution

The fourth proportional to 59,716.92, 82,231.59 and 58,390.95 is: 80,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,716.92 : 82,231.59 = 58,390.95 : x
  2. Step 2: Convert to fraction form
    59,716.92/82,231.59 = 58,390.95/x
  3. Step 3: Cross multiply
    59,716.92x = 82,231.59 × 58,390.95
  4. Step 4: Simplify right side
    59,716.92x = 4,801,580,660.11
  5. Step 5: Solve for x
    x = 4,801,580,660.11/59,716.92
  6. Step 6: Final answer
    x = 80,405.70

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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.