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Finding the Fourth Proportional to 172,350.92, 258,524.44 and 67,243.70

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Solution

The fourth proportional to 172,350.92, 258,524.44 and 67,243.70 is: 100,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,350.92 : 258,524.44 = 67,243.70 : x
  2. Step 2: Convert to fraction form
    172,350.92/258,524.44 = 67,243.70/x
  3. Step 3: Cross multiply
    172,350.92x = 258,524.44 × 67,243.70
  4. Step 4: Simplify right side
    172,350.92x = 17,384,139,886.03
  5. Step 5: Solve for x
    x = 17,384,139,886.03/172,350.92
  6. Step 6: Final answer
    x = 100,864.79

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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.