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Finding the Fourth Proportional to 215,989.43, 323,947.22 and 58,180.98

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Solution

The fourth proportional to 215,989.43, 323,947.22 and 58,180.98 is: 87,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,989.43 : 323,947.22 = 58,180.98 : x
  2. Step 2: Convert to fraction form
    215,989.43/323,947.22 = 58,180.98/x
  3. Step 3: Cross multiply
    215,989.43x = 323,947.22 × 58,180.98
  4. Step 4: Simplify right side
    215,989.43x = 18,847,565,253.59
  5. Step 5: Solve for x
    x = 18,847,565,253.59/215,989.43
  6. Step 6: Final answer
    x = 87,261.52

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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.