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Finding the Fourth Proportional to 231,464.52, 347,224.52 and 81,673.85

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Solution

The fourth proportional to 231,464.52, 347,224.52 and 81,673.85 is: 122,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,464.52 : 347,224.52 = 81,673.85 : x
  2. Step 2: Convert to fraction form
    231,464.52/347,224.52 = 81,673.85/x
  3. Step 3: Cross multiply
    231,464.52x = 347,224.52 × 81,673.85
  4. Step 4: Simplify right side
    231,464.52x = 28,359,164,435.05
  5. Step 5: Solve for x
    x = 28,359,164,435.05/231,464.52
  6. Step 6: Final answer
    x = 122,520.57

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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.