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Finding the Fourth Proportional to 251,732.70, 377,836.38 and 91,963.44

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Solution

The fourth proportional to 251,732.70, 377,836.38 and 91,963.44 is: 138,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,732.70 : 377,836.38 = 91,963.44 : x
  2. Step 2: Convert to fraction form
    251,732.70/377,836.38 = 91,963.44/x
  3. Step 3: Cross multiply
    251,732.70x = 377,836.38 × 91,963.44
  4. Step 4: Simplify right side
    251,732.70x = 34,747,133,261.95
  5. Step 5: Solve for x
    x = 34,747,133,261.95/251,732.70
  6. Step 6: Final answer
    x = 138,031.86

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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.