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Finding the Fourth Proportional to 69,644.40, 104,423.40 and 40,047.60

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Solution

The fourth proportional to 69,644.40, 104,423.40 and 40,047.60 is: 60,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,644.40 : 104,423.40 = 40,047.60 : x
  2. Step 2: Convert to fraction form
    69,644.40/104,423.40 = 40,047.60/x
  3. Step 3: Cross multiply
    69,644.40x = 104,423.40 × 40,047.60
  4. Step 4: Simplify right side
    69,644.40x = 4,181,906,553.84
  5. Step 5: Solve for x
    x = 4,181,906,553.84/69,644.40
  6. Step 6: Final answer
    x = 60,046.56

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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.