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Finding the Fourth Proportional to 69,388.80, 104,083.20 and 44,505.60

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Solution

The fourth proportional to 69,388.80, 104,083.20 and 44,505.60 is: 66,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,388.80 : 104,083.20 = 44,505.60 : x
  2. Step 2: Convert to fraction form
    69,388.80/104,083.20 = 44,505.60/x
  3. Step 3: Cross multiply
    69,388.80x = 104,083.20 × 44,505.60
  4. Step 4: Simplify right side
    69,388.80x = 4,632,285,265.92
  5. Step 5: Solve for x
    x = 4,632,285,265.92/69,388.80
  6. Step 6: Final answer
    x = 66,758.40

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1.5x scale

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.