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Finding the Fourth Proportional to 262,939.34, 394,172.97 and 94,420.65

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Solution

The fourth proportional to 262,939.34, 394,172.97 and 94,420.65 is: 141,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,939.34 : 394,172.97 = 94,420.65 : x
  2. Step 2: Convert to fraction form
    262,939.34/394,172.97 = 94,420.65/x
  3. Step 3: Cross multiply
    262,939.34x = 394,172.97 × 94,420.65
  4. Step 4: Simplify right side
    262,939.34x = 37,218,068,039.83
  5. Step 5: Solve for x
    x = 37,218,068,039.83/262,939.34
  6. Step 6: Final answer
    x = 141,546.22

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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.