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Finding the Fourth Proportional to 80,668.66, 111,323.82 and 44,861.80

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Solution

The fourth proportional to 80,668.66, 111,323.82 and 44,861.80 is: 61,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,668.66 : 111,323.82 = 44,861.80 : x
  2. Step 2: Convert to fraction form
    80,668.66/111,323.82 = 44,861.80/x
  3. Step 3: Cross multiply
    80,668.66x = 111,323.82 × 44,861.80
  4. Step 4: Simplify right side
    80,668.66x = 4,994,186,948.08
  5. Step 5: Solve for x
    x = 4,994,186,948.08/80,668.66
  6. Step 6: Final answer
    x = 61,909.88

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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.