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Finding the Fourth Proportional to 239.36, 358.43 and 167.67

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Solution

The fourth proportional to 239.36, 358.43 and 167.67 is: 251.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.36 : 358.43 = 167.67 : x
  2. Step 2: Convert to fraction form
    239.36/358.43 = 167.67/x
  3. Step 3: Cross multiply
    239.36x = 358.43 × 167.67
  4. Step 4: Simplify right side
    239.36x = 60,097.12
  5. Step 5: Solve for x
    x = 60,097.12/239.36
  6. Step 6: Final answer
    x = 251.08

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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.