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Finding the Fourth Proportional to 126,452.52, 189,785.19 and 63,253.68

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Solution

The fourth proportional to 126,452.52, 189,785.19 and 63,253.68 is: 94,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,452.52 : 189,785.19 = 63,253.68 : x
  2. Step 2: Convert to fraction form
    126,452.52/189,785.19 = 63,253.68/x
  3. Step 3: Cross multiply
    126,452.52x = 189,785.19 × 63,253.68
  4. Step 4: Simplify right side
    126,452.52x = 12,004,611,677.00
  5. Step 5: Solve for x
    x = 12,004,611,677.00/126,452.52
  6. Step 6: Final answer
    x = 94,933.75

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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.