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Finding the Third Proportional to 122,364.75 and 172,319.25

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Solution

The third proportional to 122,364.75 and 172,319.25 is: 242,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,364.75 : 172,319.25 = 172,319.25 : x
  2. Step 2: Convert to fraction form
    122,364.75/172,319.25 = 172,319.25/x
  3. Step 3: Cross multiply
    122,364.75x = 172,319.25 × 172,319.25
  4. Step 4: Simplify right side
    122,364.75x = 29,693,923,920.56
  5. Step 5: Solve for x
    x = 29,693,923,920.56/122,364.75
  6. Step 6: Final answer
    x = 242,667.30

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.