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Finding the Fourth Proportional to 251,672.10, 347,315.73 and 144,262.44

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Solution

The fourth proportional to 251,672.10, 347,315.73 and 144,262.44 is: 199,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,672.10 : 347,315.73 = 144,262.44 : x
  2. Step 2: Convert to fraction form
    251,672.10/347,315.73 = 144,262.44/x
  3. Step 3: Cross multiply
    251,672.10x = 347,315.73 × 144,262.44
  4. Step 4: Simplify right side
    251,672.10x = 50,104,614,660.18
  5. Step 5: Solve for x
    x = 50,104,614,660.18/251,672.10
  6. Step 6: Final answer
    x = 199,086.89

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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.