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Finding the Third Proportional to 101,881.50 and 157,439

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Solution

The third proportional to 101,881.50 and 157,439 is: 243,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,881.50 : 157,439 = 157,439 : x
  2. Step 2: Convert to fraction form
    101,881.50/157,439 = 157,439/x
  3. Step 3: Cross multiply
    101,881.50x = 157,439 × 157,439
  4. Step 4: Simplify right side
    101,881.50x = 24,787,038,721
  5. Step 5: Solve for x
    x = 24,787,038,721/101,881.50
  6. Step 6: Final answer
    x = 243,292.83

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.