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Finding the Fourth Proportional to 68,896.50, 103,359.36 and 22,153.02

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Solution

The fourth proportional to 68,896.50, 103,359.36 and 22,153.02 is: 33,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.50 : 103,359.36 = 22,153.02 : x
  2. Step 2: Convert to fraction form
    68,896.50/103,359.36 = 22,153.02/x
  3. Step 3: Cross multiply
    68,896.50x = 103,359.36 × 22,153.02
  4. Step 4: Simplify right side
    68,896.50x = 2,289,721,969.27
  5. Step 5: Solve for x
    x = 2,289,721,969.27/68,896.50
  6. Step 6: Final answer
    x = 33,234.23

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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.