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Finding the Fourth Proportional to 79,803.06, 110,123.16 and 43,991.10

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Solution

The fourth proportional to 79,803.06, 110,123.16 and 43,991.10 is: 60,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,803.06 : 110,123.16 = 43,991.10 : x
  2. Step 2: Convert to fraction form
    79,803.06/110,123.16 = 43,991.10/x
  3. Step 3: Cross multiply
    79,803.06x = 110,123.16 × 43,991.10
  4. Step 4: Simplify right side
    79,803.06x = 4,844,438,943.88
  5. Step 5: Solve for x
    x = 4,844,438,943.88/79,803.06
  6. Step 6: Final answer
    x = 60,704.93

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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.