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Finding the Fourth Proportional to 122,593.93, 169,179.77 and 68,878.91

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Solution

The fourth proportional to 122,593.93, 169,179.77 and 68,878.91 is: 95,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,593.93 : 169,179.77 = 68,878.91 : x
  2. Step 2: Convert to fraction form
    122,593.93/169,179.77 = 68,878.91/x
  3. Step 3: Cross multiply
    122,593.93x = 169,179.77 × 68,878.91
  4. Step 4: Simplify right side
    122,593.93x = 11,652,918,151.65
  5. Step 5: Solve for x
    x = 11,652,918,151.65/122,593.93
  6. Step 6: Final answer
    x = 95,052.98

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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.