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Finding the Third Proportional to 159,468.75 and 256,943.25

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Solution

The third proportional to 159,468.75 and 256,943.25 is: 413,998.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,468.75 : 256,943.25 = 256,943.25 : x
  2. Step 2: Convert to fraction form
    159,468.75/256,943.25 = 256,943.25/x
  3. Step 3: Cross multiply
    159,468.75x = 256,943.25 × 256,943.25
  4. Step 4: Simplify right side
    159,468.75x = 66,019,833,720.56
  5. Step 5: Solve for x
    x = 66,019,833,720.56/159,468.75
  6. Step 6: Final answer
    x = 413,998.57

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.