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Finding the Fourth Proportional to 262,851.40, 394,277.10 and 179,907.40

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Solution

The fourth proportional to 262,851.40, 394,277.10 and 179,907.40 is: 269,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,851.40 : 394,277.10 = 179,907.40 : x
  2. Step 2: Convert to fraction form
    262,851.40/394,277.10 = 179,907.40/x
  3. Step 3: Cross multiply
    262,851.40x = 394,277.10 × 179,907.40
  4. Step 4: Simplify right side
    262,851.40x = 70,933,367,940.54
  5. Step 5: Solve for x
    x = 70,933,367,940.54/262,851.40
  6. Step 6: Final answer
    x = 269,861.10

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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.