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Finding the Fourth Proportional to 247,591.72, 370,781.89 and 223,629.86

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Solution

The fourth proportional to 247,591.72, 370,781.89 and 223,629.86 is: 334,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,591.72 : 370,781.89 = 223,629.86 : x
  2. Step 2: Convert to fraction form
    247,591.72/370,781.89 = 223,629.86/x
  3. Step 3: Cross multiply
    247,591.72x = 370,781.89 × 223,629.86
  4. Step 4: Simplify right side
    247,591.72x = 82,917,902,151.24
  5. Step 5: Solve for x
    x = 82,917,902,151.24/247,591.72
  6. Step 6: Final answer
    x = 334,897.72

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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.