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Finding the Fourth Proportional to 355,163.46, 490,119.39 and 194,014.36

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Solution

The fourth proportional to 355,163.46, 490,119.39 and 194,014.36 is: 267,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,163.46 : 490,119.39 = 194,014.36 : x
  2. Step 2: Convert to fraction form
    355,163.46/490,119.39 = 194,014.36/x
  3. Step 3: Cross multiply
    355,163.46x = 490,119.39 × 194,014.36
  4. Step 4: Simplify right side
    355,163.46x = 95,090,200,387.09
  5. Step 5: Solve for x
    x = 95,090,200,387.09/355,163.46
  6. Step 6: Final answer
    x = 267,736.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.