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Finding the Fourth Proportional to 543,855.10, 815,708.84 and 159,593.73

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Solution

The fourth proportional to 543,855.10, 815,708.84 and 159,593.73 is: 239,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,855.10 : 815,708.84 = 159,593.73 : x
  2. Step 2: Convert to fraction form
    543,855.10/815,708.84 = 159,593.73/x
  3. Step 3: Cross multiply
    543,855.10x = 815,708.84 × 159,593.73
  4. Step 4: Simplify right side
    543,855.10x = 130,182,016,369.57
  5. Step 5: Solve for x
    x = 130,182,016,369.57/543,855.10
  6. Step 6: Final answer
    x = 239,368.94

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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.