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Finding the Fourth Proportional to 122,164.62, 168,585.54 and 68,450.69

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Solution

The fourth proportional to 122,164.62, 168,585.54 and 68,450.69 is: 94,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,164.62 : 168,585.54 = 68,450.69 : x
  2. Step 2: Convert to fraction form
    122,164.62/168,585.54 = 68,450.69/x
  3. Step 3: Cross multiply
    122,164.62x = 168,585.54 × 68,450.69
  4. Step 4: Simplify right side
    122,164.62x = 11,539,795,694.09
  5. Step 5: Solve for x
    x = 11,539,795,694.09/122,164.62
  6. Step 6: Final answer
    x = 94,461.03

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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.