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Finding the Fourth Proportional to 72,166.43, 108,245.99 and 24,785.88

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Solution

The fourth proportional to 72,166.43, 108,245.99 and 24,785.88 is: 37,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166.43 : 108,245.99 = 24,785.88 : x
  2. Step 2: Convert to fraction form
    72,166.43/108,245.99 = 24,785.88/x
  3. Step 3: Cross multiply
    72,166.43x = 108,245.99 × 24,785.88
  4. Step 4: Simplify right side
    72,166.43x = 2,682,971,994.69
  5. Step 5: Solve for x
    x = 2,682,971,994.69/72,166.43
  6. Step 6: Final answer
    x = 37,177.57

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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.