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Finding the Third Proportional to 54,119 and 80,958.50

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Solution

The third proportional to 54,119 and 80,958.50 is: 121,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,119 : 80,958.50 = 80,958.50 : x
  2. Step 2: Convert to fraction form
    54,119/80,958.50 = 80,958.50/x
  3. Step 3: Cross multiply
    54,119x = 80,958.50 × 80,958.50
  4. Step 4: Simplify right side
    54,119x = 6,554,278,722.25
  5. Step 5: Solve for x
    x = 6,554,278,722.25/54,119
  6. Step 6: Final answer
    x = 121,108.64

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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.