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Finding the Fourth Proportional to 80,392.68, 120,571.62 and 50,770.92

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Solution

The fourth proportional to 80,392.68, 120,571.62 and 50,770.92 is: 76,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392.68 : 120,571.62 = 50,770.92 : x
  2. Step 2: Convert to fraction form
    80,392.68/120,571.62 = 50,770.92/x
  3. Step 3: Cross multiply
    80,392.68x = 120,571.62 × 50,770.92
  4. Step 4: Simplify right side
    80,392.68x = 6,121,532,073.29
  5. Step 5: Solve for x
    x = 6,121,532,073.29/80,392.68
  6. Step 6: Final answer
    x = 76,145.39

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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.