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Finding the Fourth Proportional to 80,908.44, 111,657.12 and 45,098.44

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Solution

The fourth proportional to 80,908.44, 111,657.12 and 45,098.44 is: 62,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.44 : 111,657.12 = 45,098.44 : x
  2. Step 2: Convert to fraction form
    80,908.44/111,657.12 = 45,098.44/x
  3. Step 3: Cross multiply
    80,908.44x = 111,657.12 × 45,098.44
  4. Step 4: Simplify right side
    80,908.44x = 5,035,561,926.89
  5. Step 5: Solve for x
    x = 5,035,561,926.89/80,908.44
  6. Step 6: Final answer
    x = 62,237.78

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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.