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Finding the Fourth Proportional to 270,721.91, 373,599.54 and 149,874.37

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Solution

The fourth proportional to 270,721.91, 373,599.54 and 149,874.37 is: 206,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,721.91 : 373,599.54 = 149,874.37 : x
  2. Step 2: Convert to fraction form
    270,721.91/373,599.54 = 149,874.37/x
  3. Step 3: Cross multiply
    270,721.91x = 373,599.54 × 149,874.37
  4. Step 4: Simplify right side
    270,721.91x = 55,992,994,755.79
  5. Step 5: Solve for x
    x = 55,992,994,755.79/270,721.91
  6. Step 6: Final answer
    x = 206,828.45

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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.