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Finding the Third Proportional to 141,917.50 and 212,896.50

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Solution

The third proportional to 141,917.50 and 212,896.50 is: 319,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,917.50 : 212,896.50 = 212,896.50 : x
  2. Step 2: Convert to fraction form
    141,917.50/212,896.50 = 212,896.50/x
  3. Step 3: Cross multiply
    141,917.50x = 212,896.50 × 212,896.50
  4. Step 4: Simplify right side
    141,917.50x = 45,324,919,712.25
  5. Step 5: Solve for x
    x = 45,324,919,712.25/141,917.50
  6. Step 6: Final answer
    x = 319,375.13

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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.