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Finding the Fourth Proportional to 327,997.92, 492,009.84 and 91,361.28

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Solution

The fourth proportional to 327,997.92, 492,009.84 and 91,361.28 is: 137,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,997.92 : 492,009.84 = 91,361.28 : x
  2. Step 2: Convert to fraction form
    327,997.92/492,009.84 = 91,361.28/x
  3. Step 3: Cross multiply
    327,997.92x = 492,009.84 × 91,361.28
  4. Step 4: Simplify right side
    327,997.92x = 44,950,648,755.00
  5. Step 5: Solve for x
    x = 44,950,648,755.00/327,997.92
  6. Step 6: Final answer
    x = 137,045.53

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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.