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Finding the Fourth Proportional to 251,791.92, 347,519.46 and 144,362.70

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Solution

The fourth proportional to 251,791.92, 347,519.46 and 144,362.70 is: 199,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,791.92 : 347,519.46 = 144,362.70 : x
  2. Step 2: Convert to fraction form
    251,791.92/347,519.46 = 144,362.70/x
  3. Step 3: Cross multiply
    251,791.92x = 347,519.46 × 144,362.70
  4. Step 4: Simplify right side
    251,791.92x = 50,168,847,548.14
  5. Step 5: Solve for x
    x = 50,168,847,548.14/251,791.92
  6. Step 6: Final answer
    x = 199,247.25

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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.