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Finding the Fourth Proportional to 79,821.99, 110,060.78 and 59,643.27

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Solution

The fourth proportional to 79,821.99, 110,060.78 and 59,643.27 is: 82,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.99 : 110,060.78 = 59,643.27 : x
  2. Step 2: Convert to fraction form
    79,821.99/110,060.78 = 59,643.27/x
  3. Step 3: Cross multiply
    79,821.99x = 110,060.78 × 59,643.27
  4. Step 4: Simplify right side
    79,821.99x = 6,564,384,519.73
  5. Step 5: Solve for x
    x = 6,564,384,519.73/79,821.99
  6. Step 6: Final answer
    x = 82,237.80

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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.