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Finding the Fourth Proportional to 117,105.96, 161,606.26 and 66,804.96

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Solution

The fourth proportional to 117,105.96, 161,606.26 and 66,804.96 is: 92,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,105.96 : 161,606.26 = 66,804.96 : x
  2. Step 2: Convert to fraction form
    117,105.96/161,606.26 = 66,804.96/x
  3. Step 3: Cross multiply
    117,105.96x = 161,606.26 × 66,804.96
  4. Step 4: Simplify right side
    117,105.96x = 10,796,099,735.05
  5. Step 5: Solve for x
    x = 10,796,099,735.05/117,105.96
  6. Step 6: Final answer
    x = 92,190.86

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1.5x scale

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.