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Finding the Third Proportional to 90,449 and 192,906

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Solution

The third proportional to 90,449 and 192,906 is: 411,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,449 : 192,906 = 192,906 : x
  2. Step 2: Convert to fraction form
    90,449/192,906 = 192,906/x
  3. Step 3: Cross multiply
    90,449x = 192,906 × 192,906
  4. Step 4: Simplify right side
    90,449x = 37,212,724,836
  5. Step 5: Solve for x
    x = 37,212,724,836/90,449
  6. Step 6: Final answer
    x = 411,422.18

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.