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Finding the Fourth Proportional to 79,161.91, 118,733.07 and 29,240.90

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Solution

The fourth proportional to 79,161.91, 118,733.07 and 29,240.90 is: 43,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,161.91 : 118,733.07 = 29,240.90 : x
  2. Step 2: Convert to fraction form
    79,161.91/118,733.07 = 29,240.90/x
  3. Step 3: Cross multiply
    79,161.91x = 118,733.07 × 29,240.90
  4. Step 4: Simplify right side
    79,161.91x = 3,471,861,826.56
  5. Step 5: Solve for x
    x = 3,471,861,826.56/79,161.91
  6. Step 6: Final answer
    x = 43,857.73

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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.