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Finding the Fourth Proportional to 126,027.92, 189,158.88 and 63,742.16

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Solution

The fourth proportional to 126,027.92, 189,158.88 and 63,742.16 is: 95,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,027.92 : 189,158.88 = 63,742.16 : x
  2. Step 2: Convert to fraction form
    126,027.92/189,158.88 = 63,742.16/x
  3. Step 3: Cross multiply
    126,027.92x = 189,158.88 × 63,742.16
  4. Step 4: Simplify right side
    126,027.92x = 12,057,395,594.38
  5. Step 5: Solve for x
    x = 12,057,395,594.38/126,027.92
  6. Step 6: Final answer
    x = 95,672.42

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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.