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Finding the Fourth Proportional to 80,318.21, 110,839.78 and 44,508.82

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Solution

The fourth proportional to 80,318.21, 110,839.78 and 44,508.82 is: 61,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,318.21 : 110,839.78 = 44,508.82 : x
  2. Step 2: Convert to fraction form
    80,318.21/110,839.78 = 44,508.82/x
  3. Step 3: Cross multiply
    80,318.21x = 110,839.78 × 44,508.82
  4. Step 4: Simplify right side
    80,318.21x = 4,933,347,816.86
  5. Step 5: Solve for x
    x = 4,933,347,816.86/80,318.21
  6. Step 6: Final answer
    x = 61,422.53

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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.