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Finding the Third Proportional to 165,656 and 262,420

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Solution

The third proportional to 165,656 and 262,420 is: 415,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,656 : 262,420 = 262,420 : x
  2. Step 2: Convert to fraction form
    165,656/262,420 = 262,420/x
  3. Step 3: Cross multiply
    165,656x = 262,420 × 262,420
  4. Step 4: Simplify right side
    165,656x = 68,864,256,400
  5. Step 5: Solve for x
    x = 68,864,256,400/165,656
  6. Step 6: Final answer
    x = 415,706.38

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.