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Finding the Fourth Proportional to 125,469.18, 188,053.08 and 54,372.24

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Solution

The fourth proportional to 125,469.18, 188,053.08 and 54,372.24 is: 81,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,469.18 : 188,053.08 = 54,372.24 : x
  2. Step 2: Convert to fraction form
    125,469.18/188,053.08 = 54,372.24/x
  3. Step 3: Cross multiply
    125,469.18x = 188,053.08 × 54,372.24
  4. Step 4: Simplify right side
    125,469.18x = 10,224,867,198.50
  5. Step 5: Solve for x
    x = 10,224,867,198.50/125,469.18
  6. Step 6: Final answer
    x = 81,493.06

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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.