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Finding the Fourth Proportional to 123,940.01, 171,036.41 and 67,351.38

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Solution

The fourth proportional to 123,940.01, 171,036.41 and 67,351.38 is: 92,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.01 : 171,036.41 = 67,351.38 : x
  2. Step 2: Convert to fraction form
    123,940.01/171,036.41 = 67,351.38/x
  3. Step 3: Cross multiply
    123,940.01x = 171,036.41 × 67,351.38
  4. Step 4: Simplify right side
    123,940.01x = 11,519,537,906.99
  5. Step 5: Solve for x
    x = 11,519,537,906.99/123,940.01
  6. Step 6: Final answer
    x = 92,944.47

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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.