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Finding the Third Proportional to 74,310.75 and 155,965.50

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Solution

The third proportional to 74,310.75 and 155,965.50 is: 327,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310.75 : 155,965.50 = 155,965.50 : x
  2. Step 2: Convert to fraction form
    74,310.75/155,965.50 = 155,965.50/x
  3. Step 3: Cross multiply
    74,310.75x = 155,965.50 × 155,965.50
  4. Step 4: Simplify right side
    74,310.75x = 24,325,237,190.25
  5. Step 5: Solve for x
    x = 24,325,237,190.25/74,310.75
  6. Step 6: Final answer
    x = 327,344.79

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.