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Finding the Third Proportional to 63,942.75 and 100,089

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Solution

The third proportional to 63,942.75 and 100,089 is: 156,668.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,942.75 : 100,089 = 100,089 : x
  2. Step 2: Convert to fraction form
    63,942.75/100,089 = 100,089/x
  3. Step 3: Cross multiply
    63,942.75x = 100,089 × 100,089
  4. Step 4: Simplify right side
    63,942.75x = 10,017,807,921
  5. Step 5: Solve for x
    x = 10,017,807,921/63,942.75
  6. Step 6: Final answer
    x = 156,668.39

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.