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Finding the Fourth Proportional to 63,231.92, 87,300.73 and 40,580.68

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Solution

The fourth proportional to 63,231.92, 87,300.73 and 40,580.68 is: 56,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,231.92 : 87,300.73 = 40,580.68 : x
  2. Step 2: Convert to fraction form
    63,231.92/87,300.73 = 40,580.68/x
  3. Step 3: Cross multiply
    63,231.92x = 87,300.73 × 40,580.68
  4. Step 4: Simplify right side
    63,231.92x = 3,542,722,820.37
  5. Step 5: Solve for x
    x = 3,542,722,820.37/63,231.92
  6. Step 6: Final answer
    x = 56,027.44

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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.