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Finding the Fourth Proportional to 96.42, 144.65 and 35.56

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Solution

The fourth proportional to 96.42, 144.65 and 35.56 is: 53.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.42 : 144.65 = 35.56 : x
  2. Step 2: Convert to fraction form
    96.42/144.65 = 35.56/x
  3. Step 3: Cross multiply
    96.42x = 144.65 × 35.56
  4. Step 4: Simplify right side
    96.42x = 5,143.75
  5. Step 5: Solve for x
    x = 5,143.75/96.42
  6. Step 6: Final answer
    x = 53.35

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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.