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Finding the Fourth Proportional to 71,297.20, 106,945.80 and 59,633.20

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Solution

The fourth proportional to 71,297.20, 106,945.80 and 59,633.20 is: 89,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,297.20 : 106,945.80 = 59,633.20 : x
  2. Step 2: Convert to fraction form
    71,297.20/106,945.80 = 59,633.20/x
  3. Step 3: Cross multiply
    71,297.20x = 106,945.80 × 59,633.20
  4. Step 4: Simplify right side
    71,297.20x = 6,377,520,280.56
  5. Step 5: Solve for x
    x = 6,377,520,280.56/71,297.20
  6. Step 6: Final answer
    x = 89,449.80

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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.