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Finding the Fourth Proportional to 79,909.94, 110,271.43 and 49,694.41

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Solution

The fourth proportional to 79,909.94, 110,271.43 and 49,694.41 is: 68,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,909.94 : 110,271.43 = 49,694.41 : x
  2. Step 2: Convert to fraction form
    79,909.94/110,271.43 = 49,694.41/x
  3. Step 3: Cross multiply
    79,909.94x = 110,271.43 × 49,694.41
  4. Step 4: Simplify right side
    79,909.94x = 5,479,873,574.13
  5. Step 5: Solve for x
    x = 5,479,873,574.13/79,909.94
  6. Step 6: Final answer
    x = 68,575.62

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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.