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Finding the Fourth Proportional to 72,195.84, 108,296.64 and 25,441.92

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Solution

The fourth proportional to 72,195.84, 108,296.64 and 25,441.92 is: 38,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,195.84 : 108,296.64 = 25,441.92 : x
  2. Step 2: Convert to fraction form
    72,195.84/108,296.64 = 25,441.92/x
  3. Step 3: Cross multiply
    72,195.84x = 108,296.64 × 25,441.92
  4. Step 4: Simplify right side
    72,195.84x = 2,755,274,451.15
  5. Step 5: Solve for x
    x = 2,755,274,451.15/72,195.84
  6. Step 6: Final answer
    x = 38,163.89

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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.