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Finding the Third Proportional to 130,147 and 196,860

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Solution

The third proportional to 130,147 and 196,860 is: 297,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,147 : 196,860 = 196,860 : x
  2. Step 2: Convert to fraction form
    130,147/196,860 = 196,860/x
  3. Step 3: Cross multiply
    130,147x = 196,860 × 196,860
  4. Step 4: Simplify right side
    130,147x = 38,753,859,600
  5. Step 5: Solve for x
    x = 38,753,859,600/130,147
  6. Step 6: Final answer
    x = 297,769.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.