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Finding the Fourth Proportional to 172,736.26, 259,104.39 and 67,481.42

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Solution

The fourth proportional to 172,736.26, 259,104.39 and 67,481.42 is: 101,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,736.26 : 259,104.39 = 67,481.42 : x
  2. Step 2: Convert to fraction form
    172,736.26/259,104.39 = 67,481.42/x
  3. Step 3: Cross multiply
    172,736.26x = 259,104.39 × 67,481.42
  4. Step 4: Simplify right side
    172,736.26x = 17,484,732,165.43
  5. Step 5: Solve for x
    x = 17,484,732,165.43/172,736.26
  6. Step 6: Final answer
    x = 101,222.13

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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.