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Finding the Fourth Proportional to 394,475.29, 591,850.31 and 124,644.60

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Solution

The fourth proportional to 394,475.29, 591,850.31 and 124,644.60 is: 187,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,475.29 : 591,850.31 = 124,644.60 : x
  2. Step 2: Convert to fraction form
    394,475.29/591,850.31 = 124,644.60/x
  3. Step 3: Cross multiply
    394,475.29x = 591,850.31 × 124,644.60
  4. Step 4: Simplify right side
    394,475.29x = 73,770,945,149.83
  5. Step 5: Solve for x
    x = 73,770,945,149.83/394,475.29
  6. Step 6: Final answer
    x = 187,010.31

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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.