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Finding the Third Proportional to 171,376,530 and 261,080,288

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Solution

The third proportional to 171,376,530 and 261,080,288 is: 397,737,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,376,530 : 261,080,288 = 261,080,288 : x
  2. Step 2: Convert to fraction form
    171,376,530/261,080,288 = 261,080,288/x
  3. Step 3: Cross multiply
    171,376,530x = 261,080,288 × 261,080,288
  4. Step 4: Simplify right side
    171,376,530x = 68,162,916,782,162,944
  5. Step 5: Solve for x
    x = 68,162,916,782,162,944/171,376,530
  6. Step 6: Final answer
    x = 397,737,757.80

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.