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Finding the Fourth Proportional to 69,273.60, 103,910.40 and 52,684.80

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Solution

The fourth proportional to 69,273.60, 103,910.40 and 52,684.80 is: 79,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,273.60 : 103,910.40 = 52,684.80 : x
  2. Step 2: Convert to fraction form
    69,273.60/103,910.40 = 52,684.80/x
  3. Step 3: Cross multiply
    69,273.60x = 103,910.40 × 52,684.80
  4. Step 4: Simplify right side
    69,273.60x = 5,474,498,641.92
  5. Step 5: Solve for x
    x = 5,474,498,641.92/69,273.60
  6. Step 6: Final answer
    x = 79,027.20

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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.