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Finding the Third Proportional to 68,424.75 and 100,764

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Solution

The third proportional to 68,424.75 and 100,764 is: 148,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,424.75 : 100,764 = 100,764 : x
  2. Step 2: Convert to fraction form
    68,424.75/100,764 = 100,764/x
  3. Step 3: Cross multiply
    68,424.75x = 100,764 × 100,764
  4. Step 4: Simplify right side
    68,424.75x = 10,153,383,696
  5. Step 5: Solve for x
    x = 10,153,383,696/68,424.75
  6. Step 6: Final answer
    x = 148,387.59

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.