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Finding the Fourth Proportional to 73,174.66, 100,990.31 and 41,342.88

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Solution

The fourth proportional to 73,174.66, 100,990.31 and 41,342.88 is: 57,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,174.66 : 100,990.31 = 41,342.88 : x
  2. Step 2: Convert to fraction form
    73,174.66/100,990.31 = 41,342.88/x
  3. Step 3: Cross multiply
    73,174.66x = 100,990.31 × 41,342.88
  4. Step 4: Simplify right side
    73,174.66x = 4,175,230,267.49
  5. Step 5: Solve for x
    x = 4,175,230,267.49/73,174.66
  6. Step 6: Final answer
    x = 57,058.42

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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.