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Finding the Third Proportional to 77,520.50 and 166,873

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Solution

The third proportional to 77,520.50 and 166,873 is: 359,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,520.50 : 166,873 = 166,873 : x
  2. Step 2: Convert to fraction form
    77,520.50/166,873 = 166,873/x
  3. Step 3: Cross multiply
    77,520.50x = 166,873 × 166,873
  4. Step 4: Simplify right side
    77,520.50x = 27,846,598,129
  5. Step 5: Solve for x
    x = 27,846,598,129/77,520.50
  6. Step 6: Final answer
    x = 359,215.93

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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.