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Finding the Fourth Proportional to 172,512.86, 258,687.42 and 60,179.42

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Solution

The fourth proportional to 172,512.86, 258,687.42 and 60,179.42 is: 90,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,512.86 : 258,687.42 = 60,179.42 : x
  2. Step 2: Convert to fraction form
    172,512.86/258,687.42 = 60,179.42/x
  3. Step 3: Cross multiply
    172,512.86x = 258,687.42 × 60,179.42
  4. Step 4: Simplify right side
    172,512.86x = 15,567,658,896.90
  5. Step 5: Solve for x
    x = 15,567,658,896.90/172,512.86
  6. Step 6: Final answer
    x = 90,240.57

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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.