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Finding the Fourth Proportional to 96,751.98, 145,126.49 and 68,170.77

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Solution

The fourth proportional to 96,751.98, 145,126.49 and 68,170.77 is: 102,255.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,751.98 : 145,126.49 = 68,170.77 : x
  2. Step 2: Convert to fraction form
    96,751.98/145,126.49 = 68,170.77/x
  3. Step 3: Cross multiply
    96,751.98x = 145,126.49 × 68,170.77
  4. Step 4: Simplify right side
    96,751.98x = 9,893,384,229.84
  5. Step 5: Solve for x
    x = 9,893,384,229.84/96,751.98
  6. Step 6: Final answer
    x = 102,255.11

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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.