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Finding the Fourth Proportional to 126,472.40, 189,711.84 and 59,896.88

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Solution

The fourth proportional to 126,472.40, 189,711.84 and 59,896.88 is: 89,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,472.40 : 189,711.84 = 59,896.88 : x
  2. Step 2: Convert to fraction form
    126,472.40/189,711.84 = 59,896.88/x
  3. Step 3: Cross multiply
    126,472.40x = 189,711.84 × 59,896.88
  4. Step 4: Simplify right side
    126,472.40x = 11,363,147,315.06
  5. Step 5: Solve for x
    x = 11,363,147,315.06/126,472.40
  6. Step 6: Final answer
    x = 89,846.85

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1.5x scale

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.