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Finding the Fourth Proportional to 263.46, 395.36 and 92.46

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Solution

The fourth proportional to 263.46, 395.36 and 92.46 is: 138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.46 : 395.36 = 92.46 : x
  2. Step 2: Convert to fraction form
    263.46/395.36 = 92.46/x
  3. Step 3: Cross multiply
    263.46x = 395.36 × 92.46
  4. Step 4: Simplify right side
    263.46x = 36,555.22
  5. Step 5: Solve for x
    x = 36,555.22/263.46
  6. Step 6: Final answer
    x = 138.75

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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.