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Finding the Fourth Proportional to 96.16, 144.18 and 73.38

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Solution

The fourth proportional to 96.16, 144.18 and 73.38 is: 110.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.16 : 144.18 = 73.38 : x
  2. Step 2: Convert to fraction form
    96.16/144.18 = 73.38/x
  3. Step 3: Cross multiply
    96.16x = 144.18 × 73.38
  4. Step 4: Simplify right side
    96.16x = 10,579.93
  5. Step 5: Solve for x
    x = 10,579.93/96.16
  6. Step 6: Final answer
    x = 110.02

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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.