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Finding the Fourth Proportional to 80,257.72, 110,759.24 and 43,961.72

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Solution

The fourth proportional to 80,257.72, 110,759.24 and 43,961.72 is: 60,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,257.72 : 110,759.24 = 43,961.72 : x
  2. Step 2: Convert to fraction form
    80,257.72/110,759.24 = 43,961.72/x
  3. Step 3: Cross multiply
    80,257.72x = 110,759.24 × 43,961.72
  4. Step 4: Simplify right side
    80,257.72x = 4,869,166,419.39
  5. Step 5: Solve for x
    x = 4,869,166,419.39/80,257.72
  6. Step 6: Final answer
    x = 60,669.14

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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.