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Finding the Third Proportional to 68,418.75 and 102,353.25

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Solution

The third proportional to 68,418.75 and 102,353.25 is: 153,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,418.75 : 102,353.25 = 102,353.25 : x
  2. Step 2: Convert to fraction form
    68,418.75/102,353.25 = 102,353.25/x
  3. Step 3: Cross multiply
    68,418.75x = 102,353.25 × 102,353.25
  4. Step 4: Simplify right side
    68,418.75x = 10,476,187,785.56
  5. Step 5: Solve for x
    x = 10,476,187,785.56/68,418.75
  6. Step 6: Final answer
    x = 153,118.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.