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Finding the Fourth Proportional to 104,768.99, 144,581.19 and 57,022.67

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Solution

The fourth proportional to 104,768.99, 144,581.19 and 57,022.67 is: 78,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,768.99 : 144,581.19 = 57,022.67 : x
  2. Step 2: Convert to fraction form
    104,768.99/144,581.19 = 57,022.67/x
  3. Step 3: Cross multiply
    104,768.99x = 144,581.19 × 57,022.67
  4. Step 4: Simplify right side
    104,768.99x = 8,244,405,847.03
  5. Step 5: Solve for x
    x = 8,244,405,847.03/104,768.99
  6. Step 6: Final answer
    x = 78,691.28

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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.