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Finding the Fourth Proportional to 233.16, 349.94 and 111.46

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Solution

The fourth proportional to 233.16, 349.94 and 111.46 is: 167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.16 : 349.94 = 111.46 : x
  2. Step 2: Convert to fraction form
    233.16/349.94 = 111.46/x
  3. Step 3: Cross multiply
    233.16x = 349.94 × 111.46
  4. Step 4: Simplify right side
    233.16x = 39,003.72
  5. Step 5: Solve for x
    x = 39,003.72/233.16
  6. Step 6: Final answer
    x = 167.28

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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.