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Finding the Fourth Proportional to 126,434.32, 189,744.80 and 59,874.32

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Solution

The fourth proportional to 126,434.32, 189,744.80 and 59,874.32 is: 89,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,434.32 : 189,744.80 = 59,874.32 : x
  2. Step 2: Convert to fraction form
    126,434.32/189,744.80 = 59,874.32/x
  3. Step 3: Cross multiply
    126,434.32x = 189,744.80 × 59,874.32
  4. Step 4: Simplify right side
    126,434.32x = 11,360,841,048.53
  5. Step 5: Solve for x
    x = 11,360,841,048.53/126,434.32
  6. Step 6: Final answer
    x = 89,855.68

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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.