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Finding the Third Proportional to 100,631.75 and 217,027.50

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Solution

The third proportional to 100,631.75 and 217,027.50 is: 468,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,631.75 : 217,027.50 = 217,027.50 : x
  2. Step 2: Convert to fraction form
    100,631.75/217,027.50 = 217,027.50/x
  3. Step 3: Cross multiply
    100,631.75x = 217,027.50 × 217,027.50
  4. Step 4: Simplify right side
    100,631.75x = 47,100,935,756.25
  5. Step 5: Solve for x
    x = 47,100,935,756.25/100,631.75
  6. Step 6: Final answer
    x = 468,052.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.