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Finding the Fourth Proportional to 270,694.62, 405,813.54 and 170,634.20

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Solution

The fourth proportional to 270,694.62, 405,813.54 and 170,634.20 is: 255,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,694.62 : 405,813.54 = 170,634.20 : x
  2. Step 2: Convert to fraction form
    270,694.62/405,813.54 = 170,634.20/x
  3. Step 3: Cross multiply
    270,694.62x = 405,813.54 × 170,634.20
  4. Step 4: Simplify right side
    270,694.62x = 69,245,668,747.07
  5. Step 5: Solve for x
    x = 69,245,668,747.07/270,694.62
  6. Step 6: Final answer
    x = 255,807.33

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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.