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Finding the Fourth Proportional to 96.48, 144.56 and 93.64

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Solution

The fourth proportional to 96.48, 144.56 and 93.64 is: 140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.48 : 144.56 = 93.64 : x
  2. Step 2: Convert to fraction form
    96.48/144.56 = 93.64/x
  3. Step 3: Cross multiply
    96.48x = 144.56 × 93.64
  4. Step 4: Simplify right side
    96.48x = 13,536.60
  5. Step 5: Solve for x
    x = 13,536.60/96.48
  6. Step 6: Final answer
    x = 140.30

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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.