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Finding the Third Proportional to 165,273 and 356,781

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Solution

The third proportional to 165,273 and 356,781 is: 770,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,273 : 356,781 = 356,781 : x
  2. Step 2: Convert to fraction form
    165,273/356,781 = 356,781/x
  3. Step 3: Cross multiply
    165,273x = 356,781 × 356,781
  4. Step 4: Simplify right side
    165,273x = 127,292,681,961
  5. Step 5: Solve for x
    x = 127,292,681,961/165,273
  6. Step 6: Final answer
    x = 770,196.47

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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.