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Finding the Third Proportional to 101,164.50 and 217,089

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Solution

The third proportional to 101,164.50 and 217,089 is: 465,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,164.50 : 217,089 = 217,089 : x
  2. Step 2: Convert to fraction form
    101,164.50/217,089 = 217,089/x
  3. Step 3: Cross multiply
    101,164.50x = 217,089 × 217,089
  4. Step 4: Simplify right side
    101,164.50x = 47,127,633,921
  5. Step 5: Solve for x
    x = 47,127,633,921/101,164.50
  6. Step 6: Final answer
    x = 465,851.50

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.