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Finding the Fourth Proportional to 228,563.26, 342,778.69 and 68,632.73

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Solution

The fourth proportional to 228,563.26, 342,778.69 and 68,632.73 is: 102,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,563.26 : 342,778.69 = 68,632.73 : x
  2. Step 2: Convert to fraction form
    228,563.26/342,778.69 = 68,632.73/x
  3. Step 3: Cross multiply
    228,563.26x = 342,778.69 × 68,632.73
  4. Step 4: Simplify right side
    228,563.26x = 23,525,837,033.81
  5. Step 5: Solve for x
    x = 23,525,837,033.81/228,563.26
  6. Step 6: Final answer
    x = 102,929.22

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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.