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Finding the Fourth Proportional to 79,563.72, 109,798.74 and 43,753.98

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Solution

The fourth proportional to 79,563.72, 109,798.74 and 43,753.98 is: 60,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,563.72 : 109,798.74 = 43,753.98 : x
  2. Step 2: Convert to fraction form
    79,563.72/109,798.74 = 43,753.98/x
  3. Step 3: Cross multiply
    79,563.72x = 109,798.74 × 43,753.98
  4. Step 4: Simplify right side
    79,563.72x = 4,804,131,873.99
  5. Step 5: Solve for x
    x = 4,804,131,873.99/79,563.72
  6. Step 6: Final answer
    x = 60,380.94

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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.