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Finding the Fourth Proportional to 333,458.41, 500,188.90 and 80,738.48

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Solution

The fourth proportional to 333,458.41, 500,188.90 and 80,738.48 is: 121,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,458.41 : 500,188.90 = 80,738.48 : x
  2. Step 2: Convert to fraction form
    333,458.41/500,188.90 = 80,738.48/x
  3. Step 3: Cross multiply
    333,458.41x = 500,188.90 × 80,738.48
  4. Step 4: Simplify right side
    333,458.41x = 40,384,491,498.87
  5. Step 5: Solve for x
    x = 40,384,491,498.87/333,458.41
  6. Step 6: Final answer
    x = 121,108.03

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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.