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Finding the Fourth Proportional to 171,193.80, 256,771.26 and 66,003.96

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Solution

The fourth proportional to 171,193.80, 256,771.26 and 66,003.96 is: 98,998.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,193.80 : 256,771.26 = 66,003.96 : x
  2. Step 2: Convert to fraction form
    171,193.80/256,771.26 = 66,003.96/x
  3. Step 3: Cross multiply
    171,193.80x = 256,771.26 × 66,003.96
  4. Step 4: Simplify right side
    171,193.80x = 16,947,919,974.19
  5. Step 5: Solve for x
    x = 16,947,919,974.19/171,193.80
  6. Step 6: Final answer
    x = 98,998.44

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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.