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Finding the Fourth Proportional to 172,552.33, 258,890.78 and 60,249.09

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Solution

The fourth proportional to 172,552.33, 258,890.78 and 60,249.09 is: 90,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,552.33 : 258,890.78 = 60,249.09 : x
  2. Step 2: Convert to fraction form
    172,552.33/258,890.78 = 60,249.09/x
  3. Step 3: Cross multiply
    172,552.33x = 258,890.78 × 60,249.09
  4. Step 4: Simplify right side
    172,552.33x = 15,597,933,904.39
  5. Step 5: Solve for x
    x = 15,597,933,904.39/172,552.33
  6. Step 6: Final answer
    x = 90,395.38

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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.