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Finding the Fourth Proportional to 96.55, 144.95 and 96.11

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Solution

The fourth proportional to 96.55, 144.95 and 96.11 is: 144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.55 : 144.95 = 96.11 : x
  2. Step 2: Convert to fraction form
    96.55/144.95 = 96.11/x
  3. Step 3: Cross multiply
    96.55x = 144.95 × 96.11
  4. Step 4: Simplify right side
    96.55x = 13,931.14
  5. Step 5: Solve for x
    x = 13,931.14/96.55
  6. Step 6: Final answer
    x = 144.29

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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.