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Finding the Fourth Proportional to 125,372.70, 188,067.87 and 50,493.15

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Solution

The fourth proportional to 125,372.70, 188,067.87 and 50,493.15 is: 75,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,372.70 : 188,067.87 = 50,493.15 : x
  2. Step 2: Convert to fraction form
    125,372.70/188,067.87 = 50,493.15/x
  3. Step 3: Cross multiply
    125,372.70x = 188,067.87 × 50,493.15
  4. Step 4: Simplify right side
    125,372.70x = 9,496,139,170.09
  5. Step 5: Solve for x
    x = 9,496,139,170.09/125,372.70
  6. Step 6: Final answer
    x = 75,743.28

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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.