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Finding the Fourth Proportional to 327,222.36, 490,834.22 and 99,520.02

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Solution

The fourth proportional to 327,222.36, 490,834.22 and 99,520.02 is: 149,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,222.36 : 490,834.22 = 99,520.02 : x
  2. Step 2: Convert to fraction form
    327,222.36/490,834.22 = 99,520.02/x
  3. Step 3: Cross multiply
    327,222.36x = 490,834.22 × 99,520.02
  4. Step 4: Simplify right side
    327,222.36x = 48,847,830,893.48
  5. Step 5: Solve for x
    x = 48,847,830,893.48/327,222.36
  6. Step 6: Final answer
    x = 149,280.24

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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.