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Finding the Fourth Proportional to 329,704.20, 494,550.92 and 105,061.60

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Solution

The fourth proportional to 329,704.20, 494,550.92 and 105,061.60 is: 157,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,704.20 : 494,550.92 = 105,061.60 : x
  2. Step 2: Convert to fraction form
    329,704.20/494,550.92 = 105,061.60/x
  3. Step 3: Cross multiply
    329,704.20x = 494,550.92 × 105,061.60
  4. Step 4: Simplify right side
    329,704.20x = 51,958,308,463.92
  5. Step 5: Solve for x
    x = 51,958,308,463.92/329,704.20
  6. Step 6: Final answer
    x = 157,590.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.