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Finding the Fourth Proportional to 447,194.67, 670,796.87 and 131,657.55

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Solution

The fourth proportional to 447,194.67, 670,796.87 and 131,657.55 is: 197,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,194.67 : 670,796.87 = 131,657.55 : x
  2. Step 2: Convert to fraction form
    447,194.67/670,796.87 = 131,657.55/x
  3. Step 3: Cross multiply
    447,194.67x = 670,796.87 × 131,657.55
  4. Step 4: Simplify right side
    447,194.67x = 88,315,471,793.58
  5. Step 5: Solve for x
    x = 88,315,471,793.58/447,194.67
  6. Step 6: Final answer
    x = 197,487.76

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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.