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Finding the Fourth Proportional to 118.08, 177.12 and 44.94

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Solution

The fourth proportional to 118.08, 177.12 and 44.94 is: 67.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.08 : 177.12 = 44.94 : x
  2. Step 2: Convert to fraction form
    118.08/177.12 = 44.94/x
  3. Step 3: Cross multiply
    118.08x = 177.12 × 44.94
  4. Step 4: Simplify right side
    118.08x = 7,959.77
  5. Step 5: Solve for x
    x = 7,959.77/118.08
  6. Step 6: Final answer
    x = 67.41

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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.