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Finding the Third Proportional to 64,468 and 140,744

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Solution

The third proportional to 64,468 and 140,744 is: 307,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,468 : 140,744 = 140,744 : x
  2. Step 2: Convert to fraction form
    64,468/140,744 = 140,744/x
  3. Step 3: Cross multiply
    64,468x = 140,744 × 140,744
  4. Step 4: Simplify right side
    64,468x = 19,808,873,536
  5. Step 5: Solve for x
    x = 19,808,873,536/64,468
  6. Step 6: Final answer
    x = 307,266.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.