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Finding the Fourth Proportional to 96.19, 144.22 and 48.06

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Solution

The fourth proportional to 96.19, 144.22 and 48.06 is: 72.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.19 : 144.22 = 48.06 : x
  2. Step 2: Convert to fraction form
    96.19/144.22 = 48.06/x
  3. Step 3: Cross multiply
    96.19x = 144.22 × 48.06
  4. Step 4: Simplify right side
    96.19x = 6,931.21
  5. Step 5: Solve for x
    x = 6,931.21/96.19
  6. Step 6: Final answer
    x = 72.06

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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.