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Finding the Fourth Proportional to 75.36, 113.25 and 44.94

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Solution

The fourth proportional to 75.36, 113.25 and 44.94 is: 67.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.36 : 113.25 = 44.94 : x
  2. Step 2: Convert to fraction form
    75.36/113.25 = 44.94/x
  3. Step 3: Cross multiply
    75.36x = 113.25 × 44.94
  4. Step 4: Simplify right side
    75.36x = 5,089.46
  5. Step 5: Solve for x
    x = 5,089.46/75.36
  6. Step 6: Final answer
    x = 67.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.