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Finding the Fourth Proportional to 238.75, 357.95 and 116.93

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Solution

The fourth proportional to 238.75, 357.95 and 116.93 is: 175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.75 : 357.95 = 116.93 : x
  2. Step 2: Convert to fraction form
    238.75/357.95 = 116.93/x
  3. Step 3: Cross multiply
    238.75x = 357.95 × 116.93
  4. Step 4: Simplify right side
    238.75x = 41,852.72
  5. Step 5: Solve for x
    x = 41,852.72/238.75
  6. Step 6: Final answer
    x = 175.30

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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.