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Finding the Fourth Proportional to 126,434.97, 189,745.78 and 59,874.98

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Solution

The fourth proportional to 126,434.97, 189,745.78 and 59,874.98 is: 89,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,434.97 : 189,745.78 = 59,874.98 : x
  2. Step 2: Convert to fraction form
    126,434.97/189,745.78 = 59,874.98/x
  3. Step 3: Cross multiply
    126,434.97x = 189,745.78 × 59,874.98
  4. Step 4: Simplify right side
    126,434.97x = 11,361,024,507.98
  5. Step 5: Solve for x
    x = 11,361,024,507.98/126,434.97
  6. Step 6: Final answer
    x = 89,856.66

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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.