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Finding the Fourth Proportional to 343,625.28, 474,226.56 and 192,732

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Solution

The fourth proportional to 343,625.28, 474,226.56 and 192,732 is: 265,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,625.28 : 474,226.56 = 192,732 : x
  2. Step 2: Convert to fraction form
    343,625.28/474,226.56 = 192,732/x
  3. Step 3: Cross multiply
    343,625.28x = 474,226.56 × 192,732
  4. Step 4: Simplify right side
    343,625.28x = 91,398,633,361.92
  5. Step 5: Solve for x
    x = 91,398,633,361.92/343,625.28
  6. Step 6: Final answer
    x = 265,983.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.