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Finding the Fourth Proportional to 122,442.85, 168,975.37 and 67,995.94

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Solution

The fourth proportional to 122,442.85, 168,975.37 and 67,995.94 is: 93,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,442.85 : 168,975.37 = 67,995.94 : x
  2. Step 2: Convert to fraction form
    122,442.85/168,975.37 = 67,995.94/x
  3. Step 3: Cross multiply
    122,442.85x = 168,975.37 × 67,995.94
  4. Step 4: Simplify right side
    122,442.85x = 11,489,639,120.00
  5. Step 5: Solve for x
    x = 11,489,639,120.00/122,442.85
  6. Step 6: Final answer
    x = 93,836.75

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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.