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Finding the Fourth Proportional to 233.06, 349.49 and 117.55

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Solution

The fourth proportional to 233.06, 349.49 and 117.55 is: 176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.06 : 349.49 = 117.55 : x
  2. Step 2: Convert to fraction form
    233.06/349.49 = 117.55/x
  3. Step 3: Cross multiply
    233.06x = 349.49 × 117.55
  4. Step 4: Simplify right side
    233.06x = 41,081.97
  5. Step 5: Solve for x
    x = 41,081.97/233.06
  6. Step 6: Final answer
    x = 176.28

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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.