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Finding the Fourth Proportional to 79,525.60, 109,747.32 and 43,716.52

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Solution

The fourth proportional to 79,525.60, 109,747.32 and 43,716.52 is: 60,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,525.60 : 109,747.32 = 43,716.52 : x
  2. Step 2: Convert to fraction form
    79,525.60/109,747.32 = 43,716.52/x
  3. Step 3: Cross multiply
    79,525.60x = 109,747.32 × 43,716.52
  4. Step 4: Simplify right side
    79,525.60x = 4,797,770,909.73
  5. Step 5: Solve for x
    x = 4,797,770,909.73/79,525.60
  6. Step 6: Final answer
    x = 60,329.89

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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.