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Finding the Fourth Proportional to 78,706.02, 118,042.17 and 22,531.04

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Solution

The fourth proportional to 78,706.02, 118,042.17 and 22,531.04 is: 33,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,706.02 : 118,042.17 = 22,531.04 : x
  2. Step 2: Convert to fraction form
    78,706.02/118,042.17 = 22,531.04/x
  3. Step 3: Cross multiply
    78,706.02x = 118,042.17 × 22,531.04
  4. Step 4: Simplify right side
    78,706.02x = 2,659,612,853.96
  5. Step 5: Solve for x
    x = 2,659,612,853.96/78,706.02
  6. Step 6: Final answer
    x = 33,791.73

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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.