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Finding the Fourth Proportional to 69,389.80, 104,133.30 and 44,490.40

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Solution

The fourth proportional to 69,389.80, 104,133.30 and 44,490.40 is: 66,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,389.80 : 104,133.30 = 44,490.40 : x
  2. Step 2: Convert to fraction form
    69,389.80/104,133.30 = 44,490.40/x
  3. Step 3: Cross multiply
    69,389.80x = 104,133.30 × 44,490.40
  4. Step 4: Simplify right side
    69,389.80x = 4,632,932,170.32
  5. Step 5: Solve for x
    x = 4,632,932,170.32/69,389.80
  6. Step 6: Final answer
    x = 66,766.76

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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.