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Finding the Fourth Proportional to 236.94, 355.01 and 113.42

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Solution

The fourth proportional to 236.94, 355.01 and 113.42 is: 169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.94 : 355.01 = 113.42 : x
  2. Step 2: Convert to fraction form
    236.94/355.01 = 113.42/x
  3. Step 3: Cross multiply
    236.94x = 355.01 × 113.42
  4. Step 4: Simplify right side
    236.94x = 40,262.89
  5. Step 5: Solve for x
    x = 40,262.89/236.94
  6. Step 6: Final answer
    x = 169.93

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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.