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Finding the Fourth Proportional to 416,722.48, 625,101.04 and 121,234.48

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Solution

The fourth proportional to 416,722.48, 625,101.04 and 121,234.48 is: 181,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,722.48 : 625,101.04 = 121,234.48 : x
  2. Step 2: Convert to fraction form
    416,722.48/625,101.04 = 121,234.48/x
  3. Step 3: Cross multiply
    416,722.48x = 625,101.04 × 121,234.48
  4. Step 4: Simplify right side
    416,722.48x = 75,783,799,531.86
  5. Step 5: Solve for x
    x = 75,783,799,531.86/416,722.48
  6. Step 6: Final answer
    x = 181,856.76

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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.