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Finding the Fourth Proportional to 96.60, 144.96 and 96.30

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Solution

The fourth proportional to 96.60, 144.96 and 96.30 is: 144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.60 : 144.96 = 96.30 : x
  2. Step 2: Convert to fraction form
    96.60/144.96 = 96.30/x
  3. Step 3: Cross multiply
    96.60x = 144.96 × 96.30
  4. Step 4: Simplify right side
    96.60x = 13,959.65
  5. Step 5: Solve for x
    x = 13,959.65/96.60
  6. Step 6: Final answer
    x = 144.51

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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.