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Finding the Fourth Proportional to 96.58, 144.29 and 94.42

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Solution

The fourth proportional to 96.58, 144.29 and 94.42 is: 141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.58 : 144.29 = 94.42 : x
  2. Step 2: Convert to fraction form
    96.58/144.29 = 94.42/x
  3. Step 3: Cross multiply
    96.58x = 144.29 × 94.42
  4. Step 4: Simplify right side
    96.58x = 13,623.86
  5. Step 5: Solve for x
    x = 13,623.86/96.58
  6. Step 6: Final answer
    x = 141.06

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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.