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Finding the Fourth Proportional to 275,093.57, 379,696.64 and 167,722.80

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Solution

The fourth proportional to 275,093.57, 379,696.64 and 167,722.80 is: 231,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,093.57 : 379,696.64 = 167,722.80 : x
  2. Step 2: Convert to fraction form
    275,093.57/379,696.64 = 167,722.80/x
  3. Step 3: Cross multiply
    275,093.57x = 379,696.64 × 167,722.80
  4. Step 4: Simplify right side
    275,093.57x = 63,683,782,132.22
  5. Step 5: Solve for x
    x = 63,683,782,132.22/275,093.57
  6. Step 6: Final answer
    x = 231,498.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.