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Finding the Third Proportional to 79,517 and 107,611.50

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Solution

The third proportional to 79,517 and 107,611.50 is: 145,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517 : 107,611.50 = 107,611.50 : x
  2. Step 2: Convert to fraction form
    79,517/107,611.50 = 107,611.50/x
  3. Step 3: Cross multiply
    79,517x = 107,611.50 × 107,611.50
  4. Step 4: Simplify right side
    79,517x = 11,580,234,932.25
  5. Step 5: Solve for x
    x = 11,580,234,932.25/79,517
  6. Step 6: Final answer
    x = 145,632.19

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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.