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Finding the Fourth Proportional to 72,073.99, 108,121.32 and 22,158.27

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Solution

The fourth proportional to 72,073.99, 108,121.32 and 22,158.27 is: 33,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073.99 : 108,121.32 = 22,158.27 : x
  2. Step 2: Convert to fraction form
    72,073.99/108,121.32 = 22,158.27/x
  3. Step 3: Cross multiply
    72,073.99x = 108,121.32 × 22,158.27
  4. Step 4: Simplify right side
    72,073.99x = 2,395,781,723.68
  5. Step 5: Solve for x
    x = 2,395,781,723.68/72,073.99
  6. Step 6: Final answer
    x = 33,240.59

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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.