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Finding the Fourth Proportional to 134.44, 185.58 and 118.24

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Solution

The fourth proportional to 134.44, 185.58 and 118.24 is: 163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.44 : 185.58 = 118.24 : x
  2. Step 2: Convert to fraction form
    134.44/185.58 = 118.24/x
  3. Step 3: Cross multiply
    134.44x = 185.58 × 118.24
  4. Step 4: Simplify right side
    134.44x = 21,942.98
  5. Step 5: Solve for x
    x = 21,942.98/134.44
  6. Step 6: Final answer
    x = 163.22

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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.