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Finding the Fourth Proportional to 92,769.25, 139,162.99 and 26,209.90

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Solution

The fourth proportional to 92,769.25, 139,162.99 and 26,209.90 is: 39,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,769.25 : 139,162.99 = 26,209.90 : x
  2. Step 2: Convert to fraction form
    92,769.25/139,162.99 = 26,209.90/x
  3. Step 3: Cross multiply
    92,769.25x = 139,162.99 × 26,209.90
  4. Step 4: Simplify right side
    92,769.25x = 3,647,447,352.67
  5. Step 5: Solve for x
    x = 3,647,447,352.67/92,769.25
  6. Step 6: Final answer
    x = 39,317.42

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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.