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Finding the Fourth Proportional to 352,463.85, 486,402.57 and 191,318.90

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Solution

The fourth proportional to 352,463.85, 486,402.57 and 191,318.90 is: 264,021.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,463.85 : 486,402.57 = 191,318.90 : x
  2. Step 2: Convert to fraction form
    352,463.85/486,402.57 = 191,318.90/x
  3. Step 3: Cross multiply
    352,463.85x = 486,402.57 × 191,318.90
  4. Step 4: Simplify right side
    352,463.85x = 93,058,002,217.56
  5. Step 5: Solve for x
    x = 93,058,002,217.56/352,463.85
  6. Step 6: Final answer
    x = 264,021.41

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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.