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Finding the Fourth Proportional to 263.94, 396.10 and 133.98

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Solution

The fourth proportional to 263.94, 396.10 and 133.98 is: 201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.94 : 396.10 = 133.98 : x
  2. Step 2: Convert to fraction form
    263.94/396.10 = 133.98/x
  3. Step 3: Cross multiply
    263.94x = 396.10 × 133.98
  4. Step 4: Simplify right side
    263.94x = 53,069.48
  5. Step 5: Solve for x
    x = 53,069.48/263.94
  6. Step 6: Final answer
    x = 201.07

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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.