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Finding the Fourth Proportional to 83,668.86, 125,509.05 and 33,749.37

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Solution

The fourth proportional to 83,668.86, 125,509.05 and 33,749.37 is: 50,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.86 : 125,509.05 = 33,749.37 : x
  2. Step 2: Convert to fraction form
    83,668.86/125,509.05 = 33,749.37/x
  3. Step 3: Cross multiply
    83,668.86x = 125,509.05 × 33,749.37
  4. Step 4: Simplify right side
    83,668.86x = 4,235,851,366.80
  5. Step 5: Solve for x
    x = 4,235,851,366.80/83,668.86
  6. Step 6: Final answer
    x = 50,626.38

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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.