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Finding the Third Proportional to 79,734.75 and 128,473.13

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Solution

The third proportional to 79,734.75 and 128,473.13 is: 207,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,734.75 : 128,473.13 = 128,473.13 : x
  2. Step 2: Convert to fraction form
    79,734.75/128,473.13 = 128,473.13/x
  3. Step 3: Cross multiply
    79,734.75x = 128,473.13 × 128,473.13
  4. Step 4: Simplify right side
    79,734.75x = 16,505,343,847.27
  5. Step 5: Solve for x
    x = 16,505,343,847.27/79,734.75
  6. Step 6: Final answer
    x = 207,003.14

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.