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Finding the Fourth Proportional to 329,744.80, 494,648.52 and 89,861.68

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Solution

The fourth proportional to 329,744.80, 494,648.52 and 89,861.68 is: 134,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,744.80 : 494,648.52 = 89,861.68 : x
  2. Step 2: Convert to fraction form
    329,744.80/494,648.52 = 89,861.68/x
  3. Step 3: Cross multiply
    329,744.80x = 494,648.52 × 89,861.68
  4. Step 4: Simplify right side
    329,744.80x = 44,449,947,016.71
  5. Step 5: Solve for x
    x = 44,449,947,016.71/329,744.80
  6. Step 6: Final answer
    x = 134,801.06

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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.