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Finding the Third Proportional to 77,517 and 167,427

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Solution

The third proportional to 77,517 and 167,427 is: 361,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,517 : 167,427 = 167,427 : x
  2. Step 2: Convert to fraction form
    77,517/167,427 = 167,427/x
  3. Step 3: Cross multiply
    77,517x = 167,427 × 167,427
  4. Step 4: Simplify right side
    77,517x = 28,031,800,329
  5. Step 5: Solve for x
    x = 28,031,800,329/77,517
  6. Step 6: Final answer
    x = 361,621.33

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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.