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Finding the Fourth Proportional to 331,007.65, 496,122.67 and 153,138.94

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Solution

The fourth proportional to 331,007.65, 496,122.67 and 153,138.94 is: 229,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,007.65 : 496,122.67 = 153,138.94 : x
  2. Step 2: Convert to fraction form
    331,007.65/496,122.67 = 153,138.94/x
  3. Step 3: Cross multiply
    331,007.65x = 496,122.67 × 153,138.94
  4. Step 4: Simplify right side
    331,007.65x = 75,975,699,793.77
  5. Step 5: Solve for x
    x = 75,975,699,793.77/331,007.65
  6. Step 6: Final answer
    x = 229,528.53

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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.