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Finding the Fourth Proportional to 80,694.77, 121,048.61 and 24,539.90

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Solution

The fourth proportional to 80,694.77, 121,048.61 and 24,539.90 is: 36,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,694.77 : 121,048.61 = 24,539.90 : x
  2. Step 2: Convert to fraction form
    80,694.77/121,048.61 = 24,539.90/x
  3. Step 3: Cross multiply
    80,694.77x = 121,048.61 × 24,539.90
  4. Step 4: Simplify right side
    80,694.77x = 2,970,520,784.54
  5. Step 5: Solve for x
    x = 2,970,520,784.54/80,694.77
  6. Step 6: Final answer
    x = 36,811.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.