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Finding the Fourth Proportional to 227,963.20, 341,944.80 and 217,076.80

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Solution

The fourth proportional to 227,963.20, 341,944.80 and 217,076.80 is: 325,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,963.20 : 341,944.80 = 217,076.80 : x
  2. Step 2: Convert to fraction form
    227,963.20/341,944.80 = 217,076.80/x
  3. Step 3: Cross multiply
    227,963.20x = 341,944.80 × 217,076.80
  4. Step 4: Simplify right side
    227,963.20x = 74,228,282,960.64
  5. Step 5: Solve for x
    x = 74,228,282,960.64/227,963.20
  6. Step 6: Final answer
    x = 325,615.20

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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.