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Finding the Fourth Proportional to 79,305.18, 118,964.75 and 22,379.59

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Solution

The fourth proportional to 79,305.18, 118,964.75 and 22,379.59 is: 33,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,305.18 : 118,964.75 = 22,379.59 : x
  2. Step 2: Convert to fraction form
    79,305.18/118,964.75 = 22,379.59/x
  3. Step 3: Cross multiply
    79,305.18x = 118,964.75 × 22,379.59
  4. Step 4: Simplify right side
    79,305.18x = 2,662,382,087.99
  5. Step 5: Solve for x
    x = 2,662,382,087.99/79,305.18
  6. Step 6: Final answer
    x = 33,571.35

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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.