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Finding the Fourth Proportional to 51,187.88, 76,787.97 and 48,388.52

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Solution

The fourth proportional to 51,187.88, 76,787.97 and 48,388.52 is: 72,588.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.88 : 76,787.97 = 48,388.52 : x
  2. Step 2: Convert to fraction form
    51,187.88/76,787.97 = 48,388.52/x
  3. Step 3: Cross multiply
    51,187.88x = 76,787.97 × 48,388.52
  4. Step 4: Simplify right side
    51,187.88x = 3,715,656,232.62
  5. Step 5: Solve for x
    x = 3,715,656,232.62/51,187.88
  6. Step 6: Final answer
    x = 72,588.59

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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.