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Finding the Third Proportional to 76,105 and 121,204

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Solution

The third proportional to 76,105 and 121,204 is: 193,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,105 : 121,204 = 121,204 : x
  2. Step 2: Convert to fraction form
    76,105/121,204 = 121,204/x
  3. Step 3: Cross multiply
    76,105x = 121,204 × 121,204
  4. Step 4: Simplify right side
    76,105x = 14,690,409,616
  5. Step 5: Solve for x
    x = 14,690,409,616/76,105
  6. Step 6: Final answer
    x = 193,028.18

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.