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Finding the Fourth Proportional to 88,884.40, 133,067.40 and 79,553.20

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Solution

The fourth proportional to 88,884.40, 133,067.40 and 79,553.20 is: 119,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,884.40 : 133,067.40 = 79,553.20 : x
  2. Step 2: Convert to fraction form
    88,884.40/133,067.40 = 79,553.20/x
  3. Step 3: Cross multiply
    88,884.40x = 133,067.40 × 79,553.20
  4. Step 4: Simplify right side
    88,884.40x = 10,585,937,485.68
  5. Step 5: Solve for x
    x = 10,585,937,485.68/88,884.40
  6. Step 6: Final answer
    x = 119,097.81

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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.