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Finding the Third Proportional to 77,698.50 and 166,725

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Solution

The third proportional to 77,698.50 and 166,725 is: 357,757.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,698.50 : 166,725 = 166,725 : x
  2. Step 2: Convert to fraction form
    77,698.50/166,725 = 166,725/x
  3. Step 3: Cross multiply
    77,698.50x = 166,725 × 166,725
  4. Step 4: Simplify right side
    77,698.50x = 27,797,225,625
  5. Step 5: Solve for x
    x = 27,797,225,625/77,698.50
  6. Step 6: Final answer
    x = 357,757.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.