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Finding the Fourth Proportional to 123,930.99, 171,025.21 and 67,342.37

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Solution

The fourth proportional to 123,930.99, 171,025.21 and 67,342.37 is: 92,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,930.99 : 171,025.21 = 67,342.37 : x
  2. Step 2: Convert to fraction form
    123,930.99/171,025.21 = 67,342.37/x
  3. Step 3: Cross multiply
    123,930.99x = 171,025.21 × 67,342.37
  4. Step 4: Simplify right side
    123,930.99x = 11,517,242,200.20
  5. Step 5: Solve for x
    x = 11,517,242,200.20/123,930.99
  6. Step 6: Final answer
    x = 92,932.71

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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.