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Finding the Fourth Proportional to 441,249.87, 661,914.21 and 171,371.57

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Solution

The fourth proportional to 441,249.87, 661,914.21 and 171,371.57 is: 257,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,249.87 : 661,914.21 = 171,371.57 : x
  2. Step 2: Convert to fraction form
    441,249.87/661,914.21 = 171,371.57/x
  3. Step 3: Cross multiply
    441,249.87x = 661,914.21 × 171,371.57
  4. Step 4: Simplify right side
    441,249.87x = 113,433,274,063.44
  5. Step 5: Solve for x
    x = 113,433,274,063.44/441,249.87
  6. Step 6: Final answer
    x = 257,072.65

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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.