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Finding the Fourth Proportional to 263.72, 364.26 and 186.44

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Solution

The fourth proportional to 263.72, 364.26 and 186.44 is: 257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.72 : 364.26 = 186.44 : x
  2. Step 2: Convert to fraction form
    263.72/364.26 = 186.44/x
  3. Step 3: Cross multiply
    263.72x = 364.26 × 186.44
  4. Step 4: Simplify right side
    263.72x = 67,912.63
  5. Step 5: Solve for x
    x = 67,912.63/263.72
  6. Step 6: Final answer
    x = 257.52

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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.