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Finding the Fourth Proportional to 79,077.36, 118,622.13 and 22,918.26

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Solution

The fourth proportional to 79,077.36, 118,622.13 and 22,918.26 is: 34,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.36 : 118,622.13 = 22,918.26 : x
  2. Step 2: Convert to fraction form
    79,077.36/118,622.13 = 22,918.26/x
  3. Step 3: Cross multiply
    79,077.36x = 118,622.13 × 22,918.26
  4. Step 4: Simplify right side
    79,077.36x = 2,718,612,817.09
  5. Step 5: Solve for x
    x = 2,718,612,817.09/79,077.36
  6. Step 6: Final answer
    x = 34,379.16

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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.