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Finding the Third Proportional to 107,286.75 and 157,645.50

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Solution

The third proportional to 107,286.75 and 157,645.50 is: 231,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,286.75 : 157,645.50 = 157,645.50 : x
  2. Step 2: Convert to fraction form
    107,286.75/157,645.50 = 157,645.50/x
  3. Step 3: Cross multiply
    107,286.75x = 157,645.50 × 157,645.50
  4. Step 4: Simplify right side
    107,286.75x = 24,852,103,670.25
  5. Step 5: Solve for x
    x = 24,852,103,670.25/107,286.75
  6. Step 6: Final answer
    x = 231,641.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.