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Finding the Fourth Proportional to 96.58, 144.82 and 45.24

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Solution

The fourth proportional to 96.58, 144.82 and 45.24 is: 67.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.58 : 144.82 = 45.24 : x
  2. Step 2: Convert to fraction form
    96.58/144.82 = 45.24/x
  3. Step 3: Cross multiply
    96.58x = 144.82 × 45.24
  4. Step 4: Simplify right side
    96.58x = 6,551.66
  5. Step 5: Solve for x
    x = 6,551.66/96.58
  6. Step 6: Final answer
    x = 67.84

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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.