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Finding the Fourth Proportional to 79,872.62, 110,204.55 and 48,820.02

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Solution

The fourth proportional to 79,872.62, 110,204.55 and 48,820.02 is: 67,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,872.62 : 110,204.55 = 48,820.02 : x
  2. Step 2: Convert to fraction form
    79,872.62/110,204.55 = 48,820.02/x
  3. Step 3: Cross multiply
    79,872.62x = 110,204.55 × 48,820.02
  4. Step 4: Simplify right side
    79,872.62x = 5,380,187,921.82
  5. Step 5: Solve for x
    x = 5,380,187,921.82/79,872.62
  6. Step 6: Final answer
    x = 67,359.61

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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.