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Finding the Fourth Proportional to 183.73, 253.61 and 118.41

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Solution

The fourth proportional to 183.73, 253.61 and 118.41 is: 163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.73 : 253.61 = 118.41 : x
  2. Step 2: Convert to fraction form
    183.73/253.61 = 118.41/x
  3. Step 3: Cross multiply
    183.73x = 253.61 × 118.41
  4. Step 4: Simplify right side
    183.73x = 30,029.37
  5. Step 5: Solve for x
    x = 30,029.37/183.73
  6. Step 6: Final answer
    x = 163.44

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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.