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Finding the Fourth Proportional to 118,891.72, 178,360.89 and 44,012.44

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Solution

The fourth proportional to 118,891.72, 178,360.89 and 44,012.44 is: 66,027.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,891.72 : 178,360.89 = 44,012.44 : x
  2. Step 2: Convert to fraction form
    118,891.72/178,360.89 = 44,012.44/x
  3. Step 3: Cross multiply
    118,891.72x = 178,360.89 × 44,012.44
  4. Step 4: Simplify right side
    118,891.72x = 7,850,097,969.47
  5. Step 5: Solve for x
    x = 7,850,097,969.47/118,891.72
  6. Step 6: Final answer
    x = 66,027.29

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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.