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Finding the Fourth Proportional to 69,355.08, 103,949.46 and 39,793.32

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Solution

The fourth proportional to 69,355.08, 103,949.46 and 39,793.32 is: 59,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,355.08 : 103,949.46 = 39,793.32 : x
  2. Step 2: Convert to fraction form
    69,355.08/103,949.46 = 39,793.32/x
  3. Step 3: Cross multiply
    69,355.08x = 103,949.46 × 39,793.32
  4. Step 4: Simplify right side
    69,355.08x = 4,136,494,125.61
  5. Step 5: Solve for x
    x = 4,136,494,125.61/69,355.08
  6. Step 6: Final answer
    x = 59,642.27

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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.