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Finding the Fourth Proportional to 274,115.80, 410,979.30 and 124,427.80

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Solution

The fourth proportional to 274,115.80, 410,979.30 and 124,427.80 is: 186,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,115.80 : 410,979.30 = 124,427.80 : x
  2. Step 2: Convert to fraction form
    274,115.80/410,979.30 = 124,427.80/x
  3. Step 3: Cross multiply
    274,115.80x = 410,979.30 × 124,427.80
  4. Step 4: Simplify right side
    274,115.80x = 51,137,250,144.54
  5. Step 5: Solve for x
    x = 51,137,250,144.54/274,115.80
  6. Step 6: Final answer
    x = 186,553.46

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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.