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Finding the Fourth Proportional to 71,399.04, 106,981.72 and 43,327.73

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Solution

The fourth proportional to 71,399.04, 106,981.72 and 43,327.73 is: 64,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,399.04 : 106,981.72 = 43,327.73 : x
  2. Step 2: Convert to fraction form
    71,399.04/106,981.72 = 43,327.73/x
  3. Step 3: Cross multiply
    71,399.04x = 106,981.72 × 43,327.73
  4. Step 4: Simplify right side
    71,399.04x = 4,635,274,435.87
  5. Step 5: Solve for x
    x = 4,635,274,435.87/71,399.04
  6. Step 6: Final answer
    x = 64,920.68

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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.