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Finding the Fourth Proportional to 251,912.97, 347,671.68 and 144,480.69

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Solution

The fourth proportional to 251,912.97, 347,671.68 and 144,480.69 is: 199,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,912.97 : 347,671.68 = 144,480.69 : x
  2. Step 2: Convert to fraction form
    251,912.97/347,671.68 = 144,480.69/x
  3. Step 3: Cross multiply
    251,912.97x = 347,671.68 × 144,480.69
  4. Step 4: Simplify right side
    251,912.97x = 50,231,844,219.86
  5. Step 5: Solve for x
    x = 50,231,844,219.86/251,912.97
  6. Step 6: Final answer
    x = 199,401.58

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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.