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Finding the Third Proportional to 76,763 and 165,740

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Solution

The third proportional to 76,763 and 165,740 is: 357,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,763 : 165,740 = 165,740 : x
  2. Step 2: Convert to fraction form
    76,763/165,740 = 165,740/x
  3. Step 3: Cross multiply
    76,763x = 165,740 × 165,740
  4. Step 4: Simplify right side
    76,763x = 27,469,747,600
  5. Step 5: Solve for x
    x = 27,469,747,600/76,763
  6. Step 6: Final answer
    x = 357,851.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.