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Finding the Third Proportional to 141,905.25 and 213,456.38

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Solution

The third proportional to 141,905.25 and 213,456.38 is: 321,084.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,905.25 : 213,456.38 = 213,456.38 : x
  2. Step 2: Convert to fraction form
    141,905.25/213,456.38 = 213,456.38/x
  3. Step 3: Cross multiply
    141,905.25x = 213,456.38 × 213,456.38
  4. Step 4: Simplify right side
    141,905.25x = 45,563,624,028.14
  5. Step 5: Solve for x
    x = 45,563,624,028.14/141,905.25
  6. Step 6: Final answer
    x = 321,084.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.