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Finding the Fourth Proportional to 107.36, 160.80 and 96.56

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Solution

The fourth proportional to 107.36, 160.80 and 96.56 is: 144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.36 : 160.80 = 96.56 : x
  2. Step 2: Convert to fraction form
    107.36/160.80 = 96.56/x
  3. Step 3: Cross multiply
    107.36x = 160.80 × 96.56
  4. Step 4: Simplify right side
    107.36x = 15,526.85
  5. Step 5: Solve for x
    x = 15,526.85/107.36
  6. Step 6: Final answer
    x = 144.62

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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.