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Finding the Fourth Proportional to 115,997.43, 173,997.17 and 45,876.74

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Solution

The fourth proportional to 115,997.43, 173,997.17 and 45,876.74 is: 68,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,997.43 : 173,997.17 = 45,876.74 : x
  2. Step 2: Convert to fraction form
    115,997.43/173,997.17 = 45,876.74/x
  3. Step 3: Cross multiply
    115,997.43x = 173,997.17 × 45,876.74
  4. Step 4: Simplify right side
    115,997.43x = 7,982,422,928.83
  5. Step 5: Solve for x
    x = 7,982,422,928.83/115,997.43
  6. Step 6: Final answer
    x = 68,815.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.