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Finding the Fourth Proportional to 79,269.56, 118,922.64 and 26,677.76

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Solution

The fourth proportional to 79,269.56, 118,922.64 and 26,677.76 is: 40,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,269.56 : 118,922.64 = 26,677.76 : x
  2. Step 2: Convert to fraction form
    79,269.56/118,922.64 = 26,677.76/x
  3. Step 3: Cross multiply
    79,269.56x = 118,922.64 × 26,677.76
  4. Step 4: Simplify right side
    79,269.56x = 3,172,589,648.49
  5. Step 5: Solve for x
    x = 3,172,589,648.49/79,269.56
  6. Step 6: Final answer
    x = 40,022.80

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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.