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Finding the Third Proportional to 109,613 and 164,420

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Solution

The third proportional to 109,613 and 164,420 is: 246,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,613 : 164,420 = 164,420 : x
  2. Step 2: Convert to fraction form
    109,613/164,420 = 164,420/x
  3. Step 3: Cross multiply
    109,613x = 164,420 × 164,420
  4. Step 4: Simplify right side
    109,613x = 27,033,936,400
  5. Step 5: Solve for x
    x = 27,033,936,400/109,613
  6. Step 6: Final answer
    x = 246,630.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.