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Finding the Fourth Proportional to 111.36, 167.08 and 46.37

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Solution

The fourth proportional to 111.36, 167.08 and 46.37 is: 69.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.36 : 167.08 = 46.37 : x
  2. Step 2: Convert to fraction form
    111.36/167.08 = 46.37/x
  3. Step 3: Cross multiply
    111.36x = 167.08 × 46.37
  4. Step 4: Simplify right side
    111.36x = 7,747.50
  5. Step 5: Solve for x
    x = 7,747.50/111.36
  6. Step 6: Final answer
    x = 69.57

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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.