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Finding the Third Proportional to 165,976 and 259,328

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Solution

The third proportional to 165,976 and 259,328 is: 405,185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,976 : 259,328 = 259,328 : x
  2. Step 2: Convert to fraction form
    165,976/259,328 = 259,328/x
  3. Step 3: Cross multiply
    165,976x = 259,328 × 259,328
  4. Step 4: Simplify right side
    165,976x = 67,251,011,584
  5. Step 5: Solve for x
    x = 67,251,011,584/165,976
  6. Step 6: Final answer
    x = 405,185.16

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.