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Finding the Fourth Proportional to 393,540.98, 590,504.20 and 168,834.94

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Solution

The fourth proportional to 393,540.98, 590,504.20 and 168,834.94 is: 253,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,540.98 : 590,504.20 = 168,834.94 : x
  2. Step 2: Convert to fraction form
    393,540.98/590,504.20 = 168,834.94/x
  3. Step 3: Cross multiply
    393,540.98x = 590,504.20 × 168,834.94
  4. Step 4: Simplify right side
    393,540.98x = 99,697,741,176.75
  5. Step 5: Solve for x
    x = 99,697,741,176.75/393,540.98
  6. Step 6: Final answer
    x = 253,335.09

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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.