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Finding the Fourth Proportional to 303,422.16, 418,721.88 and 167,464.44

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Solution

The fourth proportional to 303,422.16, 418,721.88 and 167,464.44 is: 231,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,422.16 : 418,721.88 = 167,464.44 : x
  2. Step 2: Convert to fraction form
    303,422.16/418,721.88 = 167,464.44/x
  3. Step 3: Cross multiply
    303,422.16x = 418,721.88 × 167,464.44
  4. Step 4: Simplify right side
    303,422.16x = 70,121,025,149.95
  5. Step 5: Solve for x
    x = 70,121,025,149.95/303,422.16
  6. Step 6: Final answer
    x = 231,100.54

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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.