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Finding the Fourth Proportional to 331,149.74, 496,798.67 and 120,787.67

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Solution

The fourth proportional to 331,149.74, 496,798.67 and 120,787.67 is: 181,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,149.74 : 496,798.67 = 120,787.67 : x
  2. Step 2: Convert to fraction form
    331,149.74/496,798.67 = 120,787.67/x
  3. Step 3: Cross multiply
    331,149.74x = 496,798.67 × 120,787.67
  4. Step 4: Simplify right side
    331,149.74x = 60,007,155,352.36
  5. Step 5: Solve for x
    x = 60,007,155,352.36/331,149.74
  6. Step 6: Final answer
    x = 181,208.53

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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.