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Finding the Fourth Proportional to 111.34, 166.98 and 46.33

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Solution

The fourth proportional to 111.34, 166.98 and 46.33 is: 69.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.34 : 166.98 = 46.33 : x
  2. Step 2: Convert to fraction form
    111.34/166.98 = 46.33/x
  3. Step 3: Cross multiply
    111.34x = 166.98 × 46.33
  4. Step 4: Simplify right side
    111.34x = 7,736.18
  5. Step 5: Solve for x
    x = 7,736.18/111.34
  6. Step 6: Final answer
    x = 69.48

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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.