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Finding the Fourth Proportional to 79,019.70, 118,511.76 and 22,847.30

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Solution

The fourth proportional to 79,019.70, 118,511.76 and 22,847.30 is: 34,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,019.70 : 118,511.76 = 22,847.30 : x
  2. Step 2: Convert to fraction form
    79,019.70/118,511.76 = 22,847.30/x
  3. Step 3: Cross multiply
    79,019.70x = 118,511.76 × 22,847.30
  4. Step 4: Simplify right side
    79,019.70x = 2,707,673,734.25
  5. Step 5: Solve for x
    x = 2,707,673,734.25/79,019.70
  6. Step 6: Final answer
    x = 34,265.81

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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.