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Finding the Third Proportional to 77,699.50 and 166,727

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Solution

The third proportional to 77,699.50 and 166,727 is: 357,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,699.50 : 166,727 = 166,727 : x
  2. Step 2: Convert to fraction form
    77,699.50/166,727 = 166,727/x
  3. Step 3: Cross multiply
    77,699.50x = 166,727 × 166,727
  4. Step 4: Simplify right side
    77,699.50x = 27,797,892,529
  5. Step 5: Solve for x
    x = 27,797,892,529/77,699.50
  6. Step 6: Final answer
    x = 357,761.54

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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.