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Finding the Third Proportional to 68,811.75 and 106,348.78

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Solution

The third proportional to 68,811.75 and 106,348.78 is: 164,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,811.75 : 106,348.78 = 106,348.78 : x
  2. Step 2: Convert to fraction form
    68,811.75/106,348.78 = 106,348.78/x
  3. Step 3: Cross multiply
    68,811.75x = 106,348.78 × 106,348.78
  4. Step 4: Simplify right side
    68,811.75x = 11,310,063,273.36
  5. Step 5: Solve for x
    x = 11,310,063,273.36/68,811.75
  6. Step 6: Final answer
    x = 164,362.38

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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.