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Finding the Fourth Proportional to 87,584.94, 119,991.81 and 84,304.92

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Solution

The fourth proportional to 87,584.94, 119,991.81 and 84,304.92 is: 115,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,584.94 : 119,991.81 = 84,304.92 : x
  2. Step 2: Convert to fraction form
    87,584.94/119,991.81 = 84,304.92/x
  3. Step 3: Cross multiply
    87,584.94x = 119,991.81 × 84,304.92
  4. Step 4: Simplify right side
    87,584.94x = 10,115,899,942.71
  5. Step 5: Solve for x
    x = 10,115,899,942.71/87,584.94
  6. Step 6: Final answer
    x = 115,498.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.