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Finding the Fourth Proportional to 60,989.87, 84,169.73 and 34,131.83

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Solution

The fourth proportional to 60,989.87, 84,169.73 and 34,131.83 is: 47,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,989.87 : 84,169.73 = 34,131.83 : x
  2. Step 2: Convert to fraction form
    60,989.87/84,169.73 = 34,131.83/x
  3. Step 3: Cross multiply
    60,989.87x = 84,169.73 × 34,131.83
  4. Step 4: Simplify right side
    60,989.87x = 2,872,866,579.99
  5. Step 5: Solve for x
    x = 2,872,866,579.99/60,989.87
  6. Step 6: Final answer
    x = 47,103.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.