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Finding the Fourth Proportional to 327,305.88, 490,903.02 and 90,593.10

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Solution

The fourth proportional to 327,305.88, 490,903.02 and 90,593.10 is: 135,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,305.88 : 490,903.02 = 90,593.10 : x
  2. Step 2: Convert to fraction form
    327,305.88/490,903.02 = 90,593.10/x
  3. Step 3: Cross multiply
    327,305.88x = 490,903.02 × 90,593.10
  4. Step 4: Simplify right side
    327,305.88x = 44,472,426,381.16
  5. Step 5: Solve for x
    x = 44,472,426,381.16/327,305.88
  6. Step 6: Final answer
    x = 135,874.21

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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.