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Finding the Third Proportional to 122,855.06 and 165,199.50

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Solution

The third proportional to 122,855.06 and 165,199.50 is: 222,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,855.06 : 165,199.50 = 165,199.50 : x
  2. Step 2: Convert to fraction form
    122,855.06/165,199.50 = 165,199.50/x
  3. Step 3: Cross multiply
    122,855.06x = 165,199.50 × 165,199.50
  4. Step 4: Simplify right side
    122,855.06x = 27,290,874,800.25
  5. Step 5: Solve for x
    x = 27,290,874,800.25/122,855.06
  6. Step 6: Final answer
    x = 222,138.79

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.