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Finding the Fourth Proportional to 107.67, 162.14 and 96.96

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Solution

The fourth proportional to 107.67, 162.14 and 96.96 is: 146.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.67 : 162.14 = 96.96 : x
  2. Step 2: Convert to fraction form
    107.67/162.14 = 96.96/x
  3. Step 3: Cross multiply
    107.67x = 162.14 × 96.96
  4. Step 4: Simplify right side
    107.67x = 15,720.45
  5. Step 5: Solve for x
    x = 15,720.45/107.67
  6. Step 6: Final answer
    x = 146.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.