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Finding the Fourth Proportional to 71,614.26, 98,836.74 and 43,319.88

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Solution

The fourth proportional to 71,614.26, 98,836.74 and 43,319.88 is: 59,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,614.26 : 98,836.74 = 43,319.88 : x
  2. Step 2: Convert to fraction form
    71,614.26/98,836.74 = 43,319.88/x
  3. Step 3: Cross multiply
    71,614.26x = 98,836.74 × 43,319.88
  4. Step 4: Simplify right side
    71,614.26x = 4,281,595,716.39
  5. Step 5: Solve for x
    x = 4,281,595,716.39/71,614.26
  6. Step 6: Final answer
    x = 59,786.92

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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.