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Finding the Fourth Proportional to 96.55, 144.74 and 35.64

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Solution

The fourth proportional to 96.55, 144.74 and 35.64 is: 53.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.55 : 144.74 = 35.64 : x
  2. Step 2: Convert to fraction form
    96.55/144.74 = 35.64/x
  3. Step 3: Cross multiply
    96.55x = 144.74 × 35.64
  4. Step 4: Simplify right side
    96.55x = 5,158.62
  5. Step 5: Solve for x
    x = 5,158.62/96.55
  6. Step 6: Final answer
    x = 53.43

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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.