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Finding the Fourth Proportional to 227,713.20, 341,569.80 and 221,152.20

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Solution

The fourth proportional to 227,713.20, 341,569.80 and 221,152.20 is: 331,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,713.20 : 341,569.80 = 221,152.20 : x
  2. Step 2: Convert to fraction form
    227,713.20/341,569.80 = 221,152.20/x
  3. Step 3: Cross multiply
    227,713.20x = 341,569.80 × 221,152.20
  4. Step 4: Simplify right side
    227,713.20x = 75,538,912,723.56
  5. Step 5: Solve for x
    x = 75,538,912,723.56/227,713.20
  6. Step 6: Final answer
    x = 331,728.30

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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.