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Finding the Fourth Proportional to 79,561.70, 109,795.13 and 43,754.03

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Solution

The fourth proportional to 79,561.70, 109,795.13 and 43,754.03 is: 60,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.70 : 109,795.13 = 43,754.03 : x
  2. Step 2: Convert to fraction form
    79,561.70/109,795.13 = 43,754.03/x
  3. Step 3: Cross multiply
    79,561.70x = 109,795.13 × 43,754.03
  4. Step 4: Simplify right side
    79,561.70x = 4,803,978,644.13
  5. Step 5: Solve for x
    x = 4,803,978,644.13/79,561.70
  6. Step 6: Final answer
    x = 60,380.55

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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.