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Finding the Fourth Proportional to 174.91, 263.95 and 173.56

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Solution

The fourth proportional to 174.91, 263.95 and 173.56 is: 261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.91 : 263.95 = 173.56 : x
  2. Step 2: Convert to fraction form
    174.91/263.95 = 173.56/x
  3. Step 3: Cross multiply
    174.91x = 263.95 × 173.56
  4. Step 4: Simplify right side
    174.91x = 45,810.29
  5. Step 5: Solve for x
    x = 45,810.29/174.91
  6. Step 6: Final answer
    x = 261.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.