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Finding the Fourth Proportional to 80,166.60, 111,096.99 and 79,039.08

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Solution

The fourth proportional to 80,166.60, 111,096.99 and 79,039.08 is: 109,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,166.60 : 111,096.99 = 79,039.08 : x
  2. Step 2: Convert to fraction form
    80,166.60/111,096.99 = 79,039.08/x
  3. Step 3: Cross multiply
    80,166.60x = 111,096.99 × 79,039.08
  4. Step 4: Simplify right side
    80,166.60x = 8,781,003,880.37
  5. Step 5: Solve for x
    x = 8,781,003,880.37/80,166.60
  6. Step 6: Final answer
    x = 109,534.44

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.