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Finding the Fourth Proportional to 122,183.57, 168,617.88 and 68,466.60

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Solution

The fourth proportional to 122,183.57, 168,617.88 and 68,466.60 is: 94,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,183.57 : 168,617.88 = 68,466.60 : x
  2. Step 2: Convert to fraction form
    122,183.57/168,617.88 = 68,466.60/x
  3. Step 3: Cross multiply
    122,183.57x = 168,617.88 × 68,466.60
  4. Step 4: Simplify right side
    122,183.57x = 11,544,692,942.81
  5. Step 5: Solve for x
    x = 11,544,692,942.81/122,183.57
  6. Step 6: Final answer
    x = 94,486.46

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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.