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Finding the Fourth Proportional to 69,252.21, 103,803.12 and 35,471.88

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Solution

The fourth proportional to 69,252.21, 103,803.12 and 35,471.88 is: 53,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,252.21 : 103,803.12 = 35,471.88 : x
  2. Step 2: Convert to fraction form
    69,252.21/103,803.12 = 35,471.88/x
  3. Step 3: Cross multiply
    69,252.21x = 103,803.12 × 35,471.88
  4. Step 4: Simplify right side
    69,252.21x = 3,682,091,816.27
  5. Step 5: Solve for x
    x = 3,682,091,816.27/69,252.21
  6. Step 6: Final answer
    x = 53,169.30

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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.