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Finding the Third Proportional to 113,374 and 163,890

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Solution

The third proportional to 113,374 and 163,890 is: 236,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,374 : 163,890 = 163,890 : x
  2. Step 2: Convert to fraction form
    113,374/163,890 = 163,890/x
  3. Step 3: Cross multiply
    113,374x = 163,890 × 163,890
  4. Step 4: Simplify right side
    113,374x = 26,859,932,100
  5. Step 5: Solve for x
    x = 26,859,932,100/113,374
  6. Step 6: Final answer
    x = 236,914.39

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.