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Finding the Fourth Proportional to 80,759.44, 111,451.98 and 48,931.30

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Solution

The fourth proportional to 80,759.44, 111,451.98 and 48,931.30 is: 67,527.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,759.44 : 111,451.98 = 48,931.30 : x
  2. Step 2: Convert to fraction form
    80,759.44/111,451.98 = 48,931.30/x
  3. Step 3: Cross multiply
    80,759.44x = 111,451.98 × 48,931.30
  4. Step 4: Simplify right side
    80,759.44x = 5,453,490,268.97
  5. Step 5: Solve for x
    x = 5,453,490,268.97/80,759.44
  6. Step 6: Final answer
    x = 67,527.59

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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.