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Finding the Fourth Proportional to 121,997.96, 182,730.43 and 50,704.45

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Solution

The fourth proportional to 121,997.96, 182,730.43 and 50,704.45 is: 75,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,997.96 : 182,730.43 = 50,704.45 : x
  2. Step 2: Convert to fraction form
    121,997.96/182,730.43 = 50,704.45/x
  3. Step 3: Cross multiply
    121,997.96x = 182,730.43 × 50,704.45
  4. Step 4: Simplify right side
    121,997.96x = 9,265,245,367.83
  5. Step 5: Solve for x
    x = 9,265,245,367.83/121,997.96
  6. Step 6: Final answer
    x = 75,945.90

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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.