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Finding the Fourth Proportional to 69,299.80, 103,998.30 and 44,400.40

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Solution

The fourth proportional to 69,299.80, 103,998.30 and 44,400.40 is: 66,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,299.80 : 103,998.30 = 44,400.40 : x
  2. Step 2: Convert to fraction form
    69,299.80/103,998.30 = 44,400.40/x
  3. Step 3: Cross multiply
    69,299.80x = 103,998.30 × 44,400.40
  4. Step 4: Simplify right side
    69,299.80x = 4,617,566,119.32
  5. Step 5: Solve for x
    x = 4,617,566,119.32/69,299.80
  6. Step 6: Final answer
    x = 66,631.74

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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.