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Finding the Fourth Proportional to 79,798.56, 110,122.78 and 43,989.86

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Solution

The fourth proportional to 79,798.56, 110,122.78 and 43,989.86 is: 60,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.56 : 110,122.78 = 43,989.86 : x
  2. Step 2: Convert to fraction form
    79,798.56/110,122.78 = 43,989.86/x
  3. Step 3: Cross multiply
    79,798.56x = 110,122.78 × 43,989.86
  4. Step 4: Simplify right side
    79,798.56x = 4,844,285,675.01
  5. Step 5: Solve for x
    x = 4,844,285,675.01/79,798.56
  6. Step 6: Final answer
    x = 60,706.43

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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.