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Finding the Fourth Proportional to 136,968.77, 205,915.77 and 110,640.03

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Solution

The fourth proportional to 136,968.77, 205,915.77 and 110,640.03 is: 166,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,968.77 : 205,915.77 = 110,640.03 : x
  2. Step 2: Convert to fraction form
    136,968.77/205,915.77 = 110,640.03/x
  3. Step 3: Cross multiply
    136,968.77x = 205,915.77 × 110,640.03
  4. Step 4: Simplify right side
    136,968.77x = 22,782,526,198.09
  5. Step 5: Solve for x
    x = 22,782,526,198.09/136,968.77
  6. Step 6: Final answer
    x = 166,333.73

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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.