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Finding the Third Proportional to 103,810 and 155,173

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Solution

The third proportional to 103,810 and 155,173 is: 231,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,810 : 155,173 = 155,173 : x
  2. Step 2: Convert to fraction form
    103,810/155,173 = 155,173/x
  3. Step 3: Cross multiply
    103,810x = 155,173 × 155,173
  4. Step 4: Simplify right side
    103,810x = 24,078,659,929
  5. Step 5: Solve for x
    x = 24,078,659,929/103,810
  6. Step 6: Final answer
    x = 231,949.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.