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Finding the Fourth Proportional to 352,912.62, 487,018.47 and 191,767.66

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Solution

The fourth proportional to 352,912.62, 487,018.47 and 191,767.66 is: 264,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,912.62 : 487,018.47 = 191,767.66 : x
  2. Step 2: Convert to fraction form
    352,912.62/487,018.47 = 191,767.66/x
  3. Step 3: Cross multiply
    352,912.62x = 487,018.47 × 191,767.66
  4. Step 4: Simplify right side
    352,912.62x = 93,394,392,368.68
  5. Step 5: Solve for x
    x = 93,394,392,368.68/352,912.62
  6. Step 6: Final answer
    x = 264,638.86

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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.