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Finding the Fourth Proportional to 168,143.69, 232,040.87 and 91,662.83

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Solution

The fourth proportional to 168,143.69, 232,040.87 and 91,662.83 is: 126,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,143.69 : 232,040.87 = 91,662.83 : x
  2. Step 2: Convert to fraction form
    168,143.69/232,040.87 = 91,662.83/x
  3. Step 3: Cross multiply
    168,143.69x = 232,040.87 × 91,662.83
  4. Step 4: Simplify right side
    168,143.69x = 21,269,522,361.55
  5. Step 5: Solve for x
    x = 21,269,522,361.55/168,143.69
  6. Step 6: Final answer
    x = 126,496.11

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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.