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Finding the Fourth Proportional to 352,908.23, 487,012.43 and 191,763.28

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Solution

The fourth proportional to 352,908.23, 487,012.43 and 191,763.28 is: 264,632.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,908.23 : 487,012.43 = 191,763.28 : x
  2. Step 2: Convert to fraction form
    352,908.23/487,012.43 = 191,763.28/x
  3. Step 3: Cross multiply
    352,908.23x = 487,012.43 × 191,763.28
  4. Step 4: Simplify right side
    352,908.23x = 93,391,100,627.52
  5. Step 5: Solve for x
    x = 93,391,100,627.52/352,908.23
  6. Step 6: Final answer
    x = 264,632.83

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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.