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Finding the Fourth Proportional to 233.49, 350.33 and 111.74

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Solution

The fourth proportional to 233.49, 350.33 and 111.74 is: 167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.49 : 350.33 = 111.74 : x
  2. Step 2: Convert to fraction form
    233.49/350.33 = 111.74/x
  3. Step 3: Cross multiply
    233.49x = 350.33 × 111.74
  4. Step 4: Simplify right side
    233.49x = 39,146.19
  5. Step 5: Solve for x
    x = 39,146.19/233.49
  6. Step 6: Final answer
    x = 167.66

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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.