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Finding the Fourth Proportional to 111.37, 167.08 and 46.36

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Solution

The fourth proportional to 111.37, 167.08 and 46.36 is: 69.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.37 : 167.08 = 46.36 : x
  2. Step 2: Convert to fraction form
    111.37/167.08 = 46.36/x
  3. Step 3: Cross multiply
    111.37x = 167.08 × 46.36
  4. Step 4: Simplify right side
    111.37x = 7,745.24
  5. Step 5: Solve for x
    x = 7,745.24/111.37
  6. Step 6: Final answer
    x = 69.55

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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.