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Finding the Fourth Proportional to 250,423.54, 375,469.21 and 81,884.82

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Solution

The fourth proportional to 250,423.54, 375,469.21 and 81,884.82 is: 122,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,423.54 : 375,469.21 = 81,884.82 : x
  2. Step 2: Convert to fraction form
    250,423.54/375,469.21 = 81,884.82/x
  3. Step 3: Cross multiply
    250,423.54x = 375,469.21 × 81,884.82
  4. Step 4: Simplify right side
    250,423.54x = 30,745,228,676.39
  5. Step 5: Solve for x
    x = 30,745,228,676.39/250,423.54
  6. Step 6: Final answer
    x = 122,772.92

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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.