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Finding the Fourth Proportional to 68,245.83, 102,389.07 and 49,313.25

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Solution

The fourth proportional to 68,245.83, 102,389.07 and 49,313.25 is: 73,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,245.83 : 102,389.07 = 49,313.25 : x
  2. Step 2: Convert to fraction form
    68,245.83/102,389.07 = 49,313.25/x
  3. Step 3: Cross multiply
    68,245.83x = 102,389.07 × 49,313.25
  4. Step 4: Simplify right side
    68,245.83x = 5,049,137,806.18
  5. Step 5: Solve for x
    x = 5,049,137,806.18/68,245.83
  6. Step 6: Final answer
    x = 73,984.56

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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.