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Finding the Fourth Proportional to 79,601.64, 109,846.80 and 43,789.38

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Solution

The fourth proportional to 79,601.64, 109,846.80 and 43,789.38 is: 60,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,601.64 : 109,846.80 = 43,789.38 : x
  2. Step 2: Convert to fraction form
    79,601.64/109,846.80 = 43,789.38/x
  3. Step 3: Cross multiply
    79,601.64x = 109,846.80 × 43,789.38
  4. Step 4: Simplify right side
    79,601.64x = 4,810,123,266.98
  5. Step 5: Solve for x
    x = 4,810,123,266.98/79,601.64
  6. Step 6: Final answer
    x = 60,427.44

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1.5x scale

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.