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Finding the Fourth Proportional to 247,591.45, 341,677.61 and 145,621.20

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Solution

The fourth proportional to 247,591.45, 341,677.61 and 145,621.20 is: 200,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,591.45 : 341,677.61 = 145,621.20 : x
  2. Step 2: Convert to fraction form
    247,591.45/341,677.61 = 145,621.20/x
  3. Step 3: Cross multiply
    247,591.45x = 341,677.61 × 145,621.20
  4. Step 4: Simplify right side
    247,591.45x = 49,755,503,581.33
  5. Step 5: Solve for x
    x = 49,755,503,581.33/247,591.45
  6. Step 6: Final answer
    x = 200,958.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.