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Finding the Fourth Proportional to 137,597.92, 189,808.24 and 86,591.61

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Solution

The fourth proportional to 137,597.92, 189,808.24 and 86,591.61 is: 119,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,597.92 : 189,808.24 = 86,591.61 : x
  2. Step 2: Convert to fraction form
    137,597.92/189,808.24 = 86,591.61/x
  3. Step 3: Cross multiply
    137,597.92x = 189,808.24 × 86,591.61
  4. Step 4: Simplify right side
    137,597.92x = 16,435,800,659.91
  5. Step 5: Solve for x
    x = 16,435,800,659.91/137,597.92
  6. Step 6: Final answer
    x = 119,448.04

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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.