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Finding the Fourth Proportional to 96.64, 144.68 and 64.52

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Solution

The fourth proportional to 96.64, 144.68 and 64.52 is: 96.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.64 : 144.68 = 64.52 : x
  2. Step 2: Convert to fraction form
    96.64/144.68 = 64.52/x
  3. Step 3: Cross multiply
    96.64x = 144.68 × 64.52
  4. Step 4: Simplify right side
    96.64x = 9,334.75
  5. Step 5: Solve for x
    x = 9,334.75/96.64
  6. Step 6: Final answer
    x = 96.59

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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.