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Finding the Fourth Proportional to 262,846.74, 394,291.18 and 104,988.54

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Solution

The fourth proportional to 262,846.74, 394,291.18 and 104,988.54 is: 157,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,846.74 : 394,291.18 = 104,988.54 : x
  2. Step 2: Convert to fraction form
    262,846.74/394,291.18 = 104,988.54/x
  3. Step 3: Cross multiply
    262,846.74x = 394,291.18 × 104,988.54
  4. Step 4: Simplify right side
    262,846.74x = 41,396,055,323.08
  5. Step 5: Solve for x
    x = 41,396,055,323.08/262,846.74
  6. Step 6: Final answer
    x = 157,491.23

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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.