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Finding the Fourth Proportional to 122,494.89, 169,051.30 and 68,053.44

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Solution

The fourth proportional to 122,494.89, 169,051.30 and 68,053.44 is: 93,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,494.89 : 169,051.30 = 68,053.44 : x
  2. Step 2: Convert to fraction form
    122,494.89/169,051.30 = 68,053.44/x
  3. Step 3: Cross multiply
    122,494.89x = 169,051.30 × 68,053.44
  4. Step 4: Simplify right side
    122,494.89x = 11,504,522,501.47
  5. Step 5: Solve for x
    x = 11,504,522,501.47/122,494.89
  6. Step 6: Final answer
    x = 93,918.39

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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.