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Finding the Fourth Proportional to 394,473.29, 591,847.31 and 124,642.60

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Solution

The fourth proportional to 394,473.29, 591,847.31 and 124,642.60 is: 187,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,473.29 : 591,847.31 = 124,642.60 : x
  2. Step 2: Convert to fraction form
    394,473.29/591,847.31 = 124,642.60/x
  3. Step 3: Cross multiply
    394,473.29x = 591,847.31 × 124,642.60
  4. Step 4: Simplify right side
    394,473.29x = 73,769,385,652.28
  5. Step 5: Solve for x
    x = 73,769,385,652.28/394,473.29
  6. Step 6: Final answer
    x = 187,007.30

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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.