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Finding the Third Proportional to 96,421 and 197,540

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Solution

The third proportional to 96,421 and 197,540 is: 404,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,421 : 197,540 = 197,540 : x
  2. Step 2: Convert to fraction form
    96,421/197,540 = 197,540/x
  3. Step 3: Cross multiply
    96,421x = 197,540 × 197,540
  4. Step 4: Simplify right side
    96,421x = 39,022,051,600
  5. Step 5: Solve for x
    x = 39,022,051,600/96,421
  6. Step 6: Final answer
    x = 404,704.90

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.