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Finding the Fourth Proportional to 111, 152.90 and 96.44

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Solution

The fourth proportional to 111, 152.90 and 96.44 is: 132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111 : 152.90 = 96.44 : x
  2. Step 2: Convert to fraction form
    111/152.90 = 96.44/x
  3. Step 3: Cross multiply
    111x = 152.90 × 96.44
  4. Step 4: Simplify right side
    111x = 14,745.68
  5. Step 5: Solve for x
    x = 14,745.68/111
  6. Step 6: Final answer
    x = 132.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.