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Finding the Fourth Proportional to 122,496.84, 169,054 and 68,055.24

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Solution

The fourth proportional to 122,496.84, 169,054 and 68,055.24 is: 93,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,496.84 : 169,054 = 68,055.24 : x
  2. Step 2: Convert to fraction form
    122,496.84/169,054 = 68,055.24/x
  3. Step 3: Cross multiply
    122,496.84x = 169,054 × 68,055.24
  4. Step 4: Simplify right side
    122,496.84x = 11,505,010,542.96
  5. Step 5: Solve for x
    x = 11,505,010,542.96/122,496.84
  6. Step 6: Final answer
    x = 93,920.88

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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.