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Finding the Fourth Proportional to 79,811.92, 110,141.15 and 44,003.20

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Solution

The fourth proportional to 79,811.92, 110,141.15 and 44,003.20 is: 60,724.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,811.92 : 110,141.15 = 44,003.20 : x
  2. Step 2: Convert to fraction form
    79,811.92/110,141.15 = 44,003.20/x
  3. Step 3: Cross multiply
    79,811.92x = 110,141.15 × 44,003.20
  4. Step 4: Simplify right side
    79,811.92x = 4,846,563,051.68
  5. Step 5: Solve for x
    x = 4,846,563,051.68/79,811.92
  6. Step 6: Final answer
    x = 60,724.80

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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.