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Finding the Third Proportional to 107,920 and 163,824

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Solution

The third proportional to 107,920 and 163,824 is: 248,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,920 : 163,824 = 163,824 : x
  2. Step 2: Convert to fraction form
    107,920/163,824 = 163,824/x
  3. Step 3: Cross multiply
    107,920x = 163,824 × 163,824
  4. Step 4: Simplify right side
    107,920x = 26,838,302,976
  5. Step 5: Solve for x
    x = 26,838,302,976/107,920
  6. Step 6: Final answer
    x = 248,687.02

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.