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Finding the Fourth Proportional to 347,826.25, 479,891.27 and 194,843.78

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Solution

The fourth proportional to 347,826.25, 479,891.27 and 194,843.78 is: 268,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,826.25 : 479,891.27 = 194,843.78 : x
  2. Step 2: Convert to fraction form
    347,826.25/479,891.27 = 194,843.78/x
  3. Step 3: Cross multiply
    347,826.25x = 479,891.27 × 194,843.78
  4. Step 4: Simplify right side
    347,826.25x = 93,503,827,123.45
  5. Step 5: Solve for x
    x = 93,503,827,123.45/347,826.25
  6. Step 6: Final answer
    x = 268,823.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.