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Finding the Third Proportional to 130,149 and 196,865

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Solution

The third proportional to 130,149 and 196,865 is: 297,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,149 : 196,865 = 196,865 : x
  2. Step 2: Convert to fraction form
    130,149/196,865 = 196,865/x
  3. Step 3: Cross multiply
    130,149x = 196,865 × 196,865
  4. Step 4: Simplify right side
    130,149x = 38,755,828,225
  5. Step 5: Solve for x
    x = 38,755,828,225/130,149
  6. Step 6: Final answer
    x = 297,780.45

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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.