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Finding the Fourth Proportional to 80,559.99, 120,880.89 and 36,177.66

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Solution

The fourth proportional to 80,559.99, 120,880.89 and 36,177.66 is: 54,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,559.99 : 120,880.89 = 36,177.66 : x
  2. Step 2: Convert to fraction form
    80,559.99/120,880.89 = 36,177.66/x
  3. Step 3: Cross multiply
    80,559.99x = 120,880.89 × 36,177.66
  4. Step 4: Simplify right side
    80,559.99x = 4,373,187,738.92
  5. Step 5: Solve for x
    x = 4,373,187,738.92/80,559.99
  6. Step 6: Final answer
    x = 54,284.86

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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.