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Finding the Fourth Proportional to 117.94, 176.96 and 44.81

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Solution

The fourth proportional to 117.94, 176.96 and 44.81 is: 67.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.94 : 176.96 = 44.81 : x
  2. Step 2: Convert to fraction form
    117.94/176.96 = 44.81/x
  3. Step 3: Cross multiply
    117.94x = 176.96 × 44.81
  4. Step 4: Simplify right side
    117.94x = 7,929.58
  5. Step 5: Solve for x
    x = 7,929.58/117.94
  6. Step 6: Final answer
    x = 67.23

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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.