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Finding the Fourth Proportional to 240.74, 361.07 and 67.41

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Solution

The fourth proportional to 240.74, 361.07 and 67.41 is: 101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.74 : 361.07 = 67.41 : x
  2. Step 2: Convert to fraction form
    240.74/361.07 = 67.41/x
  3. Step 3: Cross multiply
    240.74x = 361.07 × 67.41
  4. Step 4: Simplify right side
    240.74x = 24,339.39
  5. Step 5: Solve for x
    x = 24,339.39/240.74
  6. Step 6: Final answer
    x = 101.10

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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.