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Finding the Fourth Proportional to 197,847.20, 296,713.20 and 71,472.80

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Solution

The fourth proportional to 197,847.20, 296,713.20 and 71,472.80 is: 107,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,847.20 : 296,713.20 = 71,472.80 : x
  2. Step 2: Convert to fraction form
    197,847.20/296,713.20 = 71,472.80/x
  3. Step 3: Cross multiply
    197,847.20x = 296,713.20 × 71,472.80
  4. Step 4: Simplify right side
    197,847.20x = 21,206,923,200.96
  5. Step 5: Solve for x
    x = 21,206,923,200.96/197,847.20
  6. Step 6: Final answer
    x = 107,188.39

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1.5x scale

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.