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Finding the Fourth Proportional to 251,229.34, 346,711.99 and 143,796.91

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Solution

The fourth proportional to 251,229.34, 346,711.99 and 143,796.91 is: 198,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,229.34 : 346,711.99 = 143,796.91 : x
  2. Step 2: Convert to fraction form
    251,229.34/346,711.99 = 143,796.91/x
  3. Step 3: Cross multiply
    251,229.34x = 346,711.99 × 143,796.91
  4. Step 4: Simplify right side
    251,229.34x = 49,856,112,821.95
  5. Step 5: Solve for x
    x = 49,856,112,821.95/251,229.34
  6. Step 6: Final answer
    x = 198,448.61

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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.