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Finding the Fourth Proportional to 79,632.84, 119,523.11 and 40,217.61

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Solution

The fourth proportional to 79,632.84, 119,523.11 and 40,217.61 is: 60,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,632.84 : 119,523.11 = 40,217.61 : x
  2. Step 2: Convert to fraction form
    79,632.84/119,523.11 = 40,217.61/x
  3. Step 3: Cross multiply
    79,632.84x = 119,523.11 × 40,217.61
  4. Step 4: Simplify right side
    79,632.84x = 4,806,933,622.88
  5. Step 5: Solve for x
    x = 4,806,933,622.88/79,632.84
  6. Step 6: Final answer
    x = 60,363.71

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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.