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Finding the Fourth Proportional to 174.84, 262.17 and 102.66

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Solution

The fourth proportional to 174.84, 262.17 and 102.66 is: 153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.84 : 262.17 = 102.66 : x
  2. Step 2: Convert to fraction form
    174.84/262.17 = 102.66/x
  3. Step 3: Cross multiply
    174.84x = 262.17 × 102.66
  4. Step 4: Simplify right side
    174.84x = 26,914.37
  5. Step 5: Solve for x
    x = 26,914.37/174.84
  6. Step 6: Final answer
    x = 153.94

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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.