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Finding the Fourth Proportional to 79,825.65, 119,793.15 and 44,286.90

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Solution

The fourth proportional to 79,825.65, 119,793.15 and 44,286.90 is: 66,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,825.65 : 119,793.15 = 44,286.90 : x
  2. Step 2: Convert to fraction form
    79,825.65/119,793.15 = 44,286.90/x
  3. Step 3: Cross multiply
    79,825.65x = 119,793.15 × 44,286.90
  4. Step 4: Simplify right side
    79,825.65x = 5,305,267,254.74
  5. Step 5: Solve for x
    x = 5,305,267,254.74/79,825.65
  6. Step 6: Final answer
    x = 66,460.68

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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.