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Finding the Third Proportional to 122,998.50 and 164,490.75

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Solution

The third proportional to 122,998.50 and 164,490.75 is: 219,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,998.50 : 164,490.75 = 164,490.75 : x
  2. Step 2: Convert to fraction form
    122,998.50/164,490.75 = 164,490.75/x
  3. Step 3: Cross multiply
    122,998.50x = 164,490.75 × 164,490.75
  4. Step 4: Simplify right side
    122,998.50x = 27,057,206,835.56
  5. Step 5: Solve for x
    x = 27,057,206,835.56/122,998.50
  6. Step 6: Final answer
    x = 219,979.97

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.