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Finding the Fourth Proportional to 104,768.92, 144,581.12 and 57,022.62

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Solution

The fourth proportional to 104,768.92, 144,581.12 and 57,022.62 is: 78,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,768.92 : 144,581.12 = 57,022.62 : x
  2. Step 2: Convert to fraction form
    104,768.92/144,581.12 = 57,022.62/x
  3. Step 3: Cross multiply
    104,768.92x = 144,581.12 × 57,022.62
  4. Step 4: Simplify right side
    104,768.92x = 8,244,394,264.93
  5. Step 5: Solve for x
    x = 8,244,394,264.93/104,768.92
  6. Step 6: Final answer
    x = 78,691.22

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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.