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Finding the Fourth Proportional to 352,908.90, 487,017.24 and 191,763.96

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Solution

The fourth proportional to 352,908.90, 487,017.24 and 191,763.96 is: 264,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,908.90 : 487,017.24 = 191,763.96 : x
  2. Step 2: Convert to fraction form
    352,908.90/487,017.24 = 191,763.96/x
  3. Step 3: Cross multiply
    352,908.90x = 487,017.24 × 191,763.96
  4. Step 4: Simplify right side
    352,908.90x = 93,392,354,530.67
  5. Step 5: Solve for x
    x = 93,392,354,530.67/352,908.90
  6. Step 6: Final answer
    x = 264,635.87

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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.