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Finding the Fourth Proportional to 245,806.20, 368,709.54 and 68,313.24

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Solution

The fourth proportional to 245,806.20, 368,709.54 and 68,313.24 is: 102,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,806.20 : 368,709.54 = 68,313.24 : x
  2. Step 2: Convert to fraction form
    245,806.20/368,709.54 = 68,313.24/x
  3. Step 3: Cross multiply
    245,806.20x = 368,709.54 × 68,313.24
  4. Step 4: Simplify right side
    245,806.20x = 25,187,743,296.31
  5. Step 5: Solve for x
    x = 25,187,743,296.31/245,806.20
  6. Step 6: Final answer
    x = 102,469.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.