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Finding the Third Proportional to 87,907.50 and 131,481

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Solution

The third proportional to 87,907.50 and 131,481 is: 196,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.50 : 131,481 = 131,481 : x
  2. Step 2: Convert to fraction form
    87,907.50/131,481 = 131,481/x
  3. Step 3: Cross multiply
    87,907.50x = 131,481 × 131,481
  4. Step 4: Simplify right side
    87,907.50x = 17,287,253,361
  5. Step 5: Solve for x
    x = 17,287,253,361/87,907.50
  6. Step 6: Final answer
    x = 196,652.77

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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.