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Finding the Fourth Proportional to 79,573.95, 109,814.13 and 43,764.66

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Solution

The fourth proportional to 79,573.95, 109,814.13 and 43,764.66 is: 60,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,573.95 : 109,814.13 = 43,764.66 : x
  2. Step 2: Convert to fraction form
    79,573.95/109,814.13 = 43,764.66/x
  3. Step 3: Cross multiply
    79,573.95x = 109,814.13 × 43,764.66
  4. Step 4: Simplify right side
    79,573.95x = 4,805,978,062.65
  5. Step 5: Solve for x
    x = 4,805,978,062.65/79,573.95
  6. Step 6: Final answer
    x = 60,396.37

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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.