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Finding the Fourth Proportional to 168,812.52, 232,965.36 and 92,338.80

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Solution

The fourth proportional to 168,812.52, 232,965.36 and 92,338.80 is: 127,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,812.52 : 232,965.36 = 92,338.80 : x
  2. Step 2: Convert to fraction form
    168,812.52/232,965.36 = 92,338.80/x
  3. Step 3: Cross multiply
    168,812.52x = 232,965.36 × 92,338.80
  4. Step 4: Simplify right side
    168,812.52x = 21,511,741,783.97
  5. Step 5: Solve for x
    x = 21,511,741,783.97/168,812.52
  6. Step 6: Final answer
    x = 127,429.78

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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.