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Finding the Fourth Proportional to 247,763.86, 341,855.31 and 145,793.77

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Solution

The fourth proportional to 247,763.86, 341,855.31 and 145,793.77 is: 201,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,763.86 : 341,855.31 = 145,793.77 : x
  2. Step 2: Convert to fraction form
    247,763.86/341,855.31 = 145,793.77/x
  3. Step 3: Cross multiply
    247,763.86x = 341,855.31 × 145,793.77
  4. Step 4: Simplify right side
    247,763.86x = 49,840,373,584.78
  5. Step 5: Solve for x
    x = 49,840,373,584.78/247,763.86
  6. Step 6: Final answer
    x = 201,160.79

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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.