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Finding the Fourth Proportional to 183.82, 253.76 and 118.34

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Solution

The fourth proportional to 183.82, 253.76 and 118.34 is: 163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.82 : 253.76 = 118.34 : x
  2. Step 2: Convert to fraction form
    183.82/253.76 = 118.34/x
  3. Step 3: Cross multiply
    183.82x = 253.76 × 118.34
  4. Step 4: Simplify right side
    183.82x = 30,029.96
  5. Step 5: Solve for x
    x = 30,029.96/183.82
  6. Step 6: Final answer
    x = 163.37

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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.