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Finding the Fourth Proportional to 352,908.10, 487,016.10 and 191,763.15

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Solution

The fourth proportional to 352,908.10, 487,016.10 and 191,763.15 is: 264,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,908.10 : 487,016.10 = 191,763.15 : x
  2. Step 2: Convert to fraction form
    352,908.10/487,016.10 = 191,763.15/x
  3. Step 3: Cross multiply
    352,908.10x = 487,016.10 × 191,763.15
  4. Step 4: Simplify right side
    352,908.10x = 93,391,741,436.72
  5. Step 5: Solve for x
    x = 93,391,741,436.72/352,908.10
  6. Step 6: Final answer
    x = 264,634.73

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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.