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Finding the Third Proportional to 98,958.38 and 215,678.25

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Solution

The third proportional to 98,958.38 and 215,678.25 is: 470,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,958.38 : 215,678.25 = 215,678.25 : x
  2. Step 2: Convert to fraction form
    98,958.38/215,678.25 = 215,678.25/x
  3. Step 3: Cross multiply
    98,958.38x = 215,678.25 × 215,678.25
  4. Step 4: Simplify right side
    98,958.38x = 46,517,107,523.06
  5. Step 5: Solve for x
    x = 46,517,107,523.06/98,958.38
  6. Step 6: Final answer
    x = 470,067.41

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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.