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Finding the Fourth Proportional to 80,238.80, 110,694.74 and 48,390.01

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Solution

The fourth proportional to 80,238.80, 110,694.74 and 48,390.01 is: 66,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,238.80 : 110,694.74 = 48,390.01 : x
  2. Step 2: Convert to fraction form
    80,238.80/110,694.74 = 48,390.01/x
  3. Step 3: Cross multiply
    80,238.80x = 110,694.74 × 48,390.01
  4. Step 4: Simplify right side
    80,238.80x = 5,356,519,056.86
  5. Step 5: Solve for x
    x = 5,356,519,056.86/80,238.80
  6. Step 6: Final answer
    x = 66,757.22

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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.