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Finding the Fourth Proportional to 159,674.80, 239,669.78 and 84,794.73

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Solution

The fourth proportional to 159,674.80, 239,669.78 and 84,794.73 is: 127,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,674.80 : 239,669.78 = 84,794.73 : x
  2. Step 2: Convert to fraction form
    159,674.80/239,669.78 = 84,794.73/x
  3. Step 3: Cross multiply
    159,674.80x = 239,669.78 × 84,794.73
  4. Step 4: Simplify right side
    159,674.80x = 20,322,734,284.26
  5. Step 5: Solve for x
    x = 20,322,734,284.26/159,674.80
  6. Step 6: Final answer
    x = 127,275.78

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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.