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Finding the Fourth Proportional to 73,082.64, 100,800.80 and 55,893.83

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Solution

The fourth proportional to 73,082.64, 100,800.80 and 55,893.83 is: 77,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,082.64 : 100,800.80 = 55,893.83 : x
  2. Step 2: Convert to fraction form
    73,082.64/100,800.80 = 55,893.83/x
  3. Step 3: Cross multiply
    73,082.64x = 100,800.80 × 55,893.83
  4. Step 4: Simplify right side
    73,082.64x = 5,634,141,995.59
  5. Step 5: Solve for x
    x = 5,634,141,995.59/73,082.64
  6. Step 6: Final answer
    x = 77,092.75

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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.