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Finding the Fourth Proportional to 79,674.65, 109,952.42 and 43,377.15

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Solution

The fourth proportional to 79,674.65, 109,952.42 and 43,377.15 is: 59,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,674.65 : 109,952.42 = 43,377.15 : x
  2. Step 2: Convert to fraction form
    79,674.65/109,952.42 = 43,377.15/x
  3. Step 3: Cross multiply
    79,674.65x = 109,952.42 × 43,377.15
  4. Step 4: Simplify right side
    79,674.65x = 4,769,422,148.66
  5. Step 5: Solve for x
    x = 4,769,422,148.66/79,674.65
  6. Step 6: Final answer
    x = 59,861.23

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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.