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Finding the Fourth Proportional to 501,439.62, 752,161.05 and 127,462.62

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Solution

The fourth proportional to 501,439.62, 752,161.05 and 127,462.62 is: 191,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,439.62 : 752,161.05 = 127,462.62 : x
  2. Step 2: Convert to fraction form
    501,439.62/752,161.05 = 127,462.62/x
  3. Step 3: Cross multiply
    501,439.62x = 752,161.05 × 127,462.62
  4. Step 4: Simplify right side
    501,439.62x = 95,872,418,094.95
  5. Step 5: Solve for x
    x = 95,872,418,094.95/501,439.62
  6. Step 6: Final answer
    x = 191,194.34

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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.