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Finding the Fourth Proportional to 96.62, 144.66 and 64.16

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Solution

The fourth proportional to 96.62, 144.66 and 64.16 is: 96.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.62 : 144.66 = 64.16 : x
  2. Step 2: Convert to fraction form
    96.62/144.66 = 64.16/x
  3. Step 3: Cross multiply
    96.62x = 144.66 × 64.16
  4. Step 4: Simplify right side
    96.62x = 9,280.66
  5. Step 5: Solve for x
    x = 9,280.66/96.62
  6. Step 6: Final answer
    x = 96.06

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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.