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Finding the Third Proportional to 79,515 and 107,608.50

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Solution

The third proportional to 79,515 and 107,608.50 is: 145,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515 : 107,608.50 = 107,608.50 : x
  2. Step 2: Convert to fraction form
    79,515/107,608.50 = 107,608.50/x
  3. Step 3: Cross multiply
    79,515x = 107,608.50 × 107,608.50
  4. Step 4: Simplify right side
    79,515x = 11,579,589,272.25
  5. Step 5: Solve for x
    x = 11,579,589,272.25/79,515
  6. Step 6: Final answer
    x = 145,627.73

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.