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Finding the Fourth Proportional to 131,889.54, 182,016.50 and 74,508.96

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Solution

The fourth proportional to 131,889.54, 182,016.50 and 74,508.96 is: 102,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,889.54 : 182,016.50 = 74,508.96 : x
  2. Step 2: Convert to fraction form
    131,889.54/182,016.50 = 74,508.96/x
  3. Step 3: Cross multiply
    131,889.54x = 182,016.50 × 74,508.96
  4. Step 4: Simplify right side
    131,889.54x = 13,561,859,745.30
  5. Step 5: Solve for x
    x = 13,561,859,745.30/131,889.54
  6. Step 6: Final answer
    x = 102,827.41

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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.