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Finding the Fourth Proportional to 325,474.29, 487,866.98 and 148,105.86

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Solution

The fourth proportional to 325,474.29, 487,866.98 and 148,105.86 is: 222,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,474.29 : 487,866.98 = 148,105.86 : x
  2. Step 2: Convert to fraction form
    325,474.29/487,866.98 = 148,105.86/x
  3. Step 3: Cross multiply
    325,474.29x = 487,866.98 × 148,105.86
  4. Step 4: Simplify right side
    325,474.29x = 72,255,957,897.97
  5. Step 5: Solve for x
    x = 72,255,957,897.97/325,474.29
  6. Step 6: Final answer
    x = 222,002.04

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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.