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Finding the Fourth Proportional to 69,624.48, 104,305.20 and 53,965.44

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Solution

The fourth proportional to 69,624.48, 104,305.20 and 53,965.44 is: 80,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,624.48 : 104,305.20 = 53,965.44 : x
  2. Step 2: Convert to fraction form
    69,624.48/104,305.20 = 53,965.44/x
  3. Step 3: Cross multiply
    69,624.48x = 104,305.20 × 53,965.44
  4. Step 4: Simplify right side
    69,624.48x = 5,628,876,012.29
  5. Step 5: Solve for x
    x = 5,628,876,012.29/69,624.48
  6. Step 6: Final answer
    x = 80,846.22

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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.