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Finding the Fourth Proportional to 262,674.66, 394,012.28 and 73,135.44

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Solution

The fourth proportional to 262,674.66, 394,012.28 and 73,135.44 is: 109,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,674.66 : 394,012.28 = 73,135.44 : x
  2. Step 2: Convert to fraction form
    262,674.66/394,012.28 = 73,135.44/x
  3. Step 3: Cross multiply
    262,674.66x = 394,012.28 × 73,135.44
  4. Step 4: Simplify right side
    262,674.66x = 28,816,261,463.20
  5. Step 5: Solve for x
    x = 28,816,261,463.20/262,674.66
  6. Step 6: Final answer
    x = 109,703.24

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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.