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Finding the Third Proportional to 108,789.75 and 166,311.56

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Solution

The third proportional to 108,789.75 and 166,311.56 is: 254,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,789.75 : 166,311.56 = 166,311.56 : x
  2. Step 2: Convert to fraction form
    108,789.75/166,311.56 = 166,311.56/x
  3. Step 3: Cross multiply
    108,789.75x = 166,311.56 × 166,311.56
  4. Step 4: Simplify right side
    108,789.75x = 27,659,535,821.19
  5. Step 5: Solve for x
    x = 27,659,535,821.19/108,789.75
  6. Step 6: Final answer
    x = 254,247.63

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.