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Finding the Fourth Proportional to 135,471.52, 203,174.46 and 56,542.96

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Solution

The fourth proportional to 135,471.52, 203,174.46 and 56,542.96 is: 84,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,471.52 : 203,174.46 = 56,542.96 : x
  2. Step 2: Convert to fraction form
    135,471.52/203,174.46 = 56,542.96/x
  3. Step 3: Cross multiply
    135,471.52x = 203,174.46 × 56,542.96
  4. Step 4: Simplify right side
    135,471.52x = 11,488,085,364.80
  5. Step 5: Solve for x
    x = 11,488,085,364.80/135,471.52
  6. Step 6: Final answer
    x = 84,800.74

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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.