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Finding the Fourth Proportional to 252,498.06, 378,682.29 and 74,963.88

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Solution

The fourth proportional to 252,498.06, 378,682.29 and 74,963.88 is: 112,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,498.06 : 378,682.29 = 74,963.88 : x
  2. Step 2: Convert to fraction form
    252,498.06/378,682.29 = 74,963.88/x
  3. Step 3: Cross multiply
    252,498.06x = 378,682.29 × 74,963.88
  4. Step 4: Simplify right side
    252,498.06x = 28,387,493,745.69
  5. Step 5: Solve for x
    x = 28,387,493,745.69/252,498.06
  6. Step 6: Final answer
    x = 112,426.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.