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Finding the Fourth Proportional to 74,081.75, 102,027.67 and 64,006.97

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Solution

The fourth proportional to 74,081.75, 102,027.67 and 64,006.97 is: 88,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,081.75 : 102,027.67 = 64,006.97 : x
  2. Step 2: Convert to fraction form
    74,081.75/102,027.67 = 64,006.97/x
  3. Step 3: Cross multiply
    74,081.75x = 102,027.67 × 64,006.97
  4. Step 4: Simplify right side
    74,081.75x = 6,530,481,342.70
  5. Step 5: Solve for x
    x = 6,530,481,342.70/74,081.75
  6. Step 6: Final answer
    x = 88,152.37

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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.