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Finding the Fourth Proportional to 96.14, 144.34 and 55.64

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Solution

The fourth proportional to 96.14, 144.34 and 55.64 is: 83.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.14 : 144.34 = 55.64 : x
  2. Step 2: Convert to fraction form
    96.14/144.34 = 55.64/x
  3. Step 3: Cross multiply
    96.14x = 144.34 × 55.64
  4. Step 4: Simplify right side
    96.14x = 8,031.08
  5. Step 5: Solve for x
    x = 8,031.08/96.14
  6. Step 6: Final answer
    x = 83.54

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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.