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Finding the Fourth Proportional to 215,989.93, 323,947.97 and 58,181.48

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Solution

The fourth proportional to 215,989.93, 323,947.97 and 58,181.48 is: 87,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,989.93 : 323,947.97 = 58,181.48 : x
  2. Step 2: Convert to fraction form
    215,989.93/323,947.97 = 58,181.48/x
  3. Step 3: Cross multiply
    215,989.93x = 323,947.97 × 58,181.48
  4. Step 4: Simplify right side
    215,989.93x = 18,847,770,717.86
  5. Step 5: Solve for x
    x = 18,847,770,717.86/215,989.93
  6. Step 6: Final answer
    x = 87,262.27

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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.