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Finding the Fourth Proportional to 80,797.60, 111,505.28 and 48,542.08

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Solution

The fourth proportional to 80,797.60, 111,505.28 and 48,542.08 is: 66,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,797.60 : 111,505.28 = 48,542.08 : x
  2. Step 2: Convert to fraction form
    80,797.60/111,505.28 = 48,542.08/x
  3. Step 3: Cross multiply
    80,797.60x = 111,505.28 × 48,542.08
  4. Step 4: Simplify right side
    80,797.60x = 5,412,698,222.18
  5. Step 5: Solve for x
    x = 5,412,698,222.18/80,797.60
  6. Step 6: Final answer
    x = 66,990.83

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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.