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Finding the Fourth Proportional to 327,093.40, 490,640.10 and 169,629.40

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Solution

The fourth proportional to 327,093.40, 490,640.10 and 169,629.40 is: 254,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,093.40 : 490,640.10 = 169,629.40 : x
  2. Step 2: Convert to fraction form
    327,093.40/490,640.10 = 169,629.40/x
  3. Step 3: Cross multiply
    327,093.40x = 490,640.10 × 169,629.40
  4. Step 4: Simplify right side
    327,093.40x = 83,226,985,778.94
  5. Step 5: Solve for x
    x = 83,226,985,778.94/327,093.40
  6. Step 6: Final answer
    x = 254,444.10

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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.