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Finding the Fourth Proportional to 71,951.67, 107,926.83 and 40,361.67

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Solution

The fourth proportional to 71,951.67, 107,926.83 and 40,361.67 is: 60,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,951.67 : 107,926.83 = 40,361.67 : x
  2. Step 2: Convert to fraction form
    71,951.67/107,926.83 = 40,361.67/x
  3. Step 3: Cross multiply
    71,951.67x = 107,926.83 × 40,361.67
  4. Step 4: Simplify right side
    71,951.67x = 4,356,107,096.61
  5. Step 5: Solve for x
    x = 4,356,107,096.61/71,951.67
  6. Step 6: Final answer
    x = 60,542.13

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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.