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Finding the Fourth Proportional to 79,103.76, 118,673.42 and 26,511.90

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Solution

The fourth proportional to 79,103.76, 118,673.42 and 26,511.90 is: 39,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,103.76 : 118,673.42 = 26,511.90 : x
  2. Step 2: Convert to fraction form
    79,103.76/118,673.42 = 26,511.90/x
  3. Step 3: Cross multiply
    79,103.76x = 118,673.42 × 26,511.90
  4. Step 4: Simplify right side
    79,103.76x = 3,146,257,711.14
  5. Step 5: Solve for x
    x = 3,146,257,711.14/79,103.76
  6. Step 6: Final answer
    x = 39,773.81

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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.