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Finding the Fourth Proportional to 233.44, 349.99 and 111.79

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Solution

The fourth proportional to 233.44, 349.99 and 111.79 is: 167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.44 : 349.99 = 111.79 : x
  2. Step 2: Convert to fraction form
    233.44/349.99 = 111.79/x
  3. Step 3: Cross multiply
    233.44x = 349.99 × 111.79
  4. Step 4: Simplify right side
    233.44x = 39,126.17
  5. Step 5: Solve for x
    x = 39,126.17/233.44
  6. Step 6: Final answer
    x = 167.60

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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.