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Finding the Fourth Proportional to 117.11, 175.64 and 44.96

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Solution

The fourth proportional to 117.11, 175.64 and 44.96 is: 67.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.11 : 175.64 = 44.96 : x
  2. Step 2: Convert to fraction form
    117.11/175.64 = 44.96/x
  3. Step 3: Cross multiply
    117.11x = 175.64 × 44.96
  4. Step 4: Simplify right side
    117.11x = 7,895.67
  5. Step 5: Solve for x
    x = 7,895.67/117.11
  6. Step 6: Final answer
    x = 67.42

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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.