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Finding the Fourth Proportional to 88, 131.96 and 44.64

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Solution

The fourth proportional to 88, 131.96 and 44.64 is: 66.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88 : 131.96 = 44.64 : x
  2. Step 2: Convert to fraction form
    88/131.96 = 44.64/x
  3. Step 3: Cross multiply
    88x = 131.96 × 44.64
  4. Step 4: Simplify right side
    88x = 5,890.69
  5. Step 5: Solve for x
    x = 5,890.69/88
  6. Step 6: Final answer
    x = 66.94

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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.