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Finding the Fourth Proportional to 238.93, 358.44 and 117.26

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Solution

The fourth proportional to 238.93, 358.44 and 117.26 is: 175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.93 : 358.44 = 117.26 : x
  2. Step 2: Convert to fraction form
    238.93/358.44 = 117.26/x
  3. Step 3: Cross multiply
    238.93x = 358.44 × 117.26
  4. Step 4: Simplify right side
    238.93x = 42,028.88
  5. Step 5: Solve for x
    x = 42,028.88/238.93
  6. Step 6: Final answer
    x = 175.91

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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.