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Finding the Fourth Proportional to 80,481.87, 111,104.96 and 50,283.95

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Solution

The fourth proportional to 80,481.87, 111,104.96 and 50,283.95 is: 69,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,481.87 : 111,104.96 = 50,283.95 : x
  2. Step 2: Convert to fraction form
    80,481.87/111,104.96 = 50,283.95/x
  3. Step 3: Cross multiply
    80,481.87x = 111,104.96 × 50,283.95
  4. Step 4: Simplify right side
    80,481.87x = 5,586,795,446.45
  5. Step 5: Solve for x
    x = 5,586,795,446.45/80,481.87
  6. Step 6: Final answer
    x = 69,416.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.