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Finding the Fourth Proportional to 83,736.62, 125,558.70 and 43,655.60

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Solution

The fourth proportional to 83,736.62, 125,558.70 and 43,655.60 is: 65,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,736.62 : 125,558.70 = 43,655.60 : x
  2. Step 2: Convert to fraction form
    83,736.62/125,558.70 = 43,655.60/x
  3. Step 3: Cross multiply
    83,736.62x = 125,558.70 × 43,655.60
  4. Step 4: Simplify right side
    83,736.62x = 5,481,339,755.93
  5. Step 5: Solve for x
    x = 5,481,339,755.93/83,736.62
  6. Step 6: Final answer
    x = 65,459.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.