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Finding the Fourth Proportional to 80,262.54, 120,443.02 and 35,926.78

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Solution

The fourth proportional to 80,262.54, 120,443.02 and 35,926.78 is: 53,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,262.54 : 120,443.02 = 35,926.78 : x
  2. Step 2: Convert to fraction form
    80,262.54/120,443.02 = 35,926.78/x
  3. Step 3: Cross multiply
    80,262.54x = 120,443.02 × 35,926.78
  4. Step 4: Simplify right side
    80,262.54x = 4,327,129,882.08
  5. Step 5: Solve for x
    x = 4,327,129,882.08/80,262.54
  6. Step 6: Final answer
    x = 53,912.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.