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Finding the Fourth Proportional to 80,517.60, 120,797.28 and 30,598.56

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Solution

The fourth proportional to 80,517.60, 120,797.28 and 30,598.56 is: 45,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,517.60 : 120,797.28 = 30,598.56 : x
  2. Step 2: Convert to fraction form
    80,517.60/120,797.28 = 30,598.56/x
  3. Step 3: Cross multiply
    80,517.60x = 120,797.28 × 30,598.56
  4. Step 4: Simplify right side
    80,517.60x = 3,696,222,819.92
  5. Step 5: Solve for x
    x = 3,696,222,819.92/80,517.60
  6. Step 6: Final answer
    x = 45,905.77

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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.