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Finding the Fourth Proportional to 327,179.57, 490,674.51 and 127,455.44

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Solution

The fourth proportional to 327,179.57, 490,674.51 and 127,455.44 is: 191,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,179.57 : 490,674.51 = 127,455.44 : x
  2. Step 2: Convert to fraction form
    327,179.57/490,674.51 = 127,455.44/x
  3. Step 3: Cross multiply
    327,179.57x = 490,674.51 × 127,455.44
  4. Step 4: Simplify right side
    327,179.57x = 62,539,133,115.46
  5. Step 5: Solve for x
    x = 62,539,133,115.46/327,179.57
  6. Step 6: Final answer
    x = 191,146.21

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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.