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Finding the Third Proportional to 103,424 and 160,128

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Solution

The third proportional to 103,424 and 160,128 is: 247,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424 : 160,128 = 160,128 : x
  2. Step 2: Convert to fraction form
    103,424/160,128 = 160,128/x
  3. Step 3: Cross multiply
    103,424x = 160,128 × 160,128
  4. Step 4: Simplify right side
    103,424x = 25,640,976,384
  5. Step 5: Solve for x
    x = 25,640,976,384/103,424
  6. Step 6: Final answer
    x = 247,920.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.