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Finding the Fourth Proportional to 168,391.88, 232,380.80 and 114,770.57

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Solution

The fourth proportional to 168,391.88, 232,380.80 and 114,770.57 is: 158,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,391.88 : 232,380.80 = 114,770.57 : x
  2. Step 2: Convert to fraction form
    168,391.88/232,380.80 = 114,770.57/x
  3. Step 3: Cross multiply
    168,391.88x = 232,380.80 × 114,770.57
  4. Step 4: Simplify right side
    168,391.88x = 26,670,476,299.20
  5. Step 5: Solve for x
    x = 26,670,476,299.20/168,391.88
  6. Step 6: Final answer
    x = 158,383.39

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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.