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Finding the Fourth Proportional to 305,832.06, 422,048.26 and 171,696.06

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Solution

The fourth proportional to 305,832.06, 422,048.26 and 171,696.06 is: 236,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,832.06 : 422,048.26 = 171,696.06 : x
  2. Step 2: Convert to fraction form
    305,832.06/422,048.26 = 171,696.06/x
  3. Step 3: Cross multiply
    305,832.06x = 422,048.26 × 171,696.06
  4. Step 4: Simplify right side
    305,832.06x = 72,464,023,371.86
  5. Step 5: Solve for x
    x = 72,464,023,371.86/305,832.06
  6. Step 6: Final answer
    x = 236,940.57

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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.