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Finding the Fourth Proportional to 123,696.88, 170,702.02 and 67,108.26

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Solution

The fourth proportional to 123,696.88, 170,702.02 and 67,108.26 is: 92,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,696.88 : 170,702.02 = 67,108.26 : x
  2. Step 2: Convert to fraction form
    123,696.88/170,702.02 = 67,108.26/x
  3. Step 3: Cross multiply
    123,696.88x = 170,702.02 × 67,108.26
  4. Step 4: Simplify right side
    123,696.88x = 11,455,515,540.69
  5. Step 5: Solve for x
    x = 11,455,515,540.69/123,696.88
  6. Step 6: Final answer
    x = 92,609.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.