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Finding the Fourth Proportional to 104,226.68, 143,832.89 and 56,480.03

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Solution

The fourth proportional to 104,226.68, 143,832.89 and 56,480.03 is: 77,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.68 : 143,832.89 = 56,480.03 : x
  2. Step 2: Convert to fraction form
    104,226.68/143,832.89 = 56,480.03/x
  3. Step 3: Cross multiply
    104,226.68x = 143,832.89 × 56,480.03
  4. Step 4: Simplify right side
    104,226.68x = 8,123,684,940.62
  5. Step 5: Solve for x
    x = 8,123,684,940.62/104,226.68
  6. Step 6: Final answer
    x = 77,942.47

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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.