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Finding the Fourth Proportional to 76,891.44, 106,093.08 and 45,058.44

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Solution

The fourth proportional to 76,891.44, 106,093.08 and 45,058.44 is: 62,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.44 : 106,093.08 = 45,058.44 : x
  2. Step 2: Convert to fraction form
    76,891.44/106,093.08 = 45,058.44/x
  3. Step 3: Cross multiply
    76,891.44x = 106,093.08 × 45,058.44
  4. Step 4: Simplify right side
    76,891.44x = 4,780,388,679.60
  5. Step 5: Solve for x
    x = 4,780,388,679.60/76,891.44
  6. Step 6: Final answer
    x = 62,170.62

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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.