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Finding the Fourth Proportional to 59,640.80, 82,217.43 and 41,679.99

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Solution

The fourth proportional to 59,640.80, 82,217.43 and 41,679.99 is: 57,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,640.80 : 82,217.43 = 41,679.99 : x
  2. Step 2: Convert to fraction form
    59,640.80/82,217.43 = 41,679.99/x
  3. Step 3: Cross multiply
    59,640.80x = 82,217.43 × 41,679.99
  4. Step 4: Simplify right side
    59,640.80x = 3,426,821,660.23
  5. Step 5: Solve for x
    x = 3,426,821,660.23/59,640.80
  6. Step 6: Final answer
    x = 57,457.68

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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.