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Finding the Fourth Proportional to 239,839.36, 359,696.36 and 71,314.31

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Solution

The fourth proportional to 239,839.36, 359,696.36 and 71,314.31 is: 106,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,839.36 : 359,696.36 = 71,314.31 : x
  2. Step 2: Convert to fraction form
    239,839.36/359,696.36 = 71,314.31/x
  3. Step 3: Cross multiply
    239,839.36x = 359,696.36 × 71,314.31
  4. Step 4: Simplify right side
    239,839.36x = 25,651,498,800.44
  5. Step 5: Solve for x
    x = 25,651,498,800.44/239,839.36
  6. Step 6: Final answer
    x = 106,952.83

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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.