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Finding the Fourth Proportional to 378,187.62, 567,348.90 and 125,483.28

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Solution

The fourth proportional to 378,187.62, 567,348.90 and 125,483.28 is: 188,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,187.62 : 567,348.90 = 125,483.28 : x
  2. Step 2: Convert to fraction form
    378,187.62/567,348.90 = 125,483.28/x
  3. Step 3: Cross multiply
    378,187.62x = 567,348.90 × 125,483.28
  4. Step 4: Simplify right side
    378,187.62x = 71,192,800,876.39
  5. Step 5: Solve for x
    x = 71,192,800,876.39/378,187.62
  6. Step 6: Final answer
    x = 188,247.31

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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.