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Finding the Fourth Proportional to 79,163.92, 118,736.06 and 29,242.90

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Solution

The fourth proportional to 79,163.92, 118,736.06 and 29,242.90 is: 43,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,163.92 : 118,736.06 = 29,242.90 : x
  2. Step 2: Convert to fraction form
    79,163.92/118,736.06 = 29,242.90/x
  3. Step 3: Cross multiply
    79,163.92x = 118,736.06 × 29,242.90
  4. Step 4: Simplify right side
    79,163.92x = 3,472,186,728.97
  5. Step 5: Solve for x
    x = 3,472,186,728.97/79,163.92
  6. Step 6: Final answer
    x = 43,860.72

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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.