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Finding the Fourth Proportional to 96.32, 144.50 and 32.20

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Solution

The fourth proportional to 96.32, 144.50 and 32.20 is: 48.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.32 : 144.50 = 32.20 : x
  2. Step 2: Convert to fraction form
    96.32/144.50 = 32.20/x
  3. Step 3: Cross multiply
    96.32x = 144.50 × 32.20
  4. Step 4: Simplify right side
    96.32x = 4,652.02
  5. Step 5: Solve for x
    x = 4,652.02/96.32
  6. Step 6: Final answer
    x = 48.30

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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.