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Finding the Fourth Proportional to 96.04, 143.57 and 74.44

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Solution

The fourth proportional to 96.04, 143.57 and 74.44 is: 111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.04 : 143.57 = 74.44 : x
  2. Step 2: Convert to fraction form
    96.04/143.57 = 74.44/x
  3. Step 3: Cross multiply
    96.04x = 143.57 × 74.44
  4. Step 4: Simplify right side
    96.04x = 10,687.35
  5. Step 5: Solve for x
    x = 10,687.35/96.04
  6. Step 6: Final answer
    x = 111.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.