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Finding the Third Proportional to 90,379.13 and 196,850.25

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Solution

The third proportional to 90,379.13 and 196,850.25 is: 428,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,379.13 : 196,850.25 = 196,850.25 : x
  2. Step 2: Convert to fraction form
    90,379.13/196,850.25 = 196,850.25/x
  3. Step 3: Cross multiply
    90,379.13x = 196,850.25 × 196,850.25
  4. Step 4: Simplify right side
    90,379.13x = 38,750,020,925.06
  5. Step 5: Solve for x
    x = 38,750,020,925.06/90,379.13
  6. Step 6: Final answer
    x = 428,749.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.