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Finding the Fourth Proportional to 331,076.80, 496,874.40 and 153,605.80

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Solution

The fourth proportional to 331,076.80, 496,874.40 and 153,605.80 is: 230,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,076.80 : 496,874.40 = 153,605.80 : x
  2. Step 2: Convert to fraction form
    331,076.80/496,874.40 = 153,605.80/x
  3. Step 3: Cross multiply
    331,076.80x = 496,874.40 × 153,605.80
  4. Step 4: Simplify right side
    331,076.80x = 76,322,789,711.52
  5. Step 5: Solve for x
    x = 76,322,789,711.52/331,076.80
  6. Step 6: Final answer
    x = 230,528.96

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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.