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Finding the Third Proportional to 80,069.50 and 115,973

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Solution

The third proportional to 80,069.50 and 115,973 is: 167,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.50 : 115,973 = 115,973 : x
  2. Step 2: Convert to fraction form
    80,069.50/115,973 = 115,973/x
  3. Step 3: Cross multiply
    80,069.50x = 115,973 × 115,973
  4. Step 4: Simplify right side
    80,069.50x = 13,449,736,729
  5. Step 5: Solve for x
    x = 13,449,736,729/80,069.50
  6. Step 6: Final answer
    x = 167,975.78

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.