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Finding the Fourth Proportional to 69,481.80, 104,271.30 and 44,582.40

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Solution

The fourth proportional to 69,481.80, 104,271.30 and 44,582.40 is: 66,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.80 : 104,271.30 = 44,582.40 : x
  2. Step 2: Convert to fraction form
    69,481.80/104,271.30 = 44,582.40/x
  3. Step 3: Cross multiply
    69,481.80x = 104,271.30 × 44,582.40
  4. Step 4: Simplify right side
    69,481.80x = 4,648,664,805.12
  5. Step 5: Solve for x
    x = 4,648,664,805.12/69,481.80
  6. Step 6: Final answer
    x = 66,904.78

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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.