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Finding the Fourth Proportional to 83,668.69, 125,471.85 and 33,731.92

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Solution

The fourth proportional to 83,668.69, 125,471.85 and 33,731.92 is: 50,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.69 : 125,471.85 = 33,731.92 : x
  2. Step 2: Convert to fraction form
    83,668.69/125,471.85 = 33,731.92/x
  3. Step 3: Cross multiply
    83,668.69x = 125,471.85 × 33,731.92
  4. Step 4: Simplify right side
    83,668.69x = 4,232,406,406.45
  5. Step 5: Solve for x
    x = 4,232,406,406.45/83,668.69
  6. Step 6: Final answer
    x = 50,585.31

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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.