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Finding the Third Proportional to 103,578.75 and 159,947.16

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Solution

The third proportional to 103,578.75 and 159,947.16 is: 246,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,578.75 : 159,947.16 = 159,947.16 : x
  2. Step 2: Convert to fraction form
    103,578.75/159,947.16 = 159,947.16/x
  3. Step 3: Cross multiply
    103,578.75x = 159,947.16 × 159,947.16
  4. Step 4: Simplify right side
    103,578.75x = 25,583,092,792.46
  5. Step 5: Solve for x
    x = 25,583,092,792.46/103,578.75
  6. Step 6: Final answer
    x = 246,991.71

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.