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Finding the Fourth Proportional to 237.96, 357.01 and 122.45

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Solution

The fourth proportional to 237.96, 357.01 and 122.45 is: 183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.96 : 357.01 = 122.45 : x
  2. Step 2: Convert to fraction form
    237.96/357.01 = 122.45/x
  3. Step 3: Cross multiply
    237.96x = 357.01 × 122.45
  4. Step 4: Simplify right side
    237.96x = 43,713.78
  5. Step 5: Solve for x
    x = 43,713.78/237.96
  6. Step 6: Final answer
    x = 183.70

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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.