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Finding the Fourth Proportional to 313,243.82, 469,861.53 and 76,588.54

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Solution

The fourth proportional to 313,243.82, 469,861.53 and 76,588.54 is: 114,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,243.82 : 469,861.53 = 76,588.54 : x
  2. Step 2: Convert to fraction form
    313,243.82/469,861.53 = 76,588.54/x
  3. Step 3: Cross multiply
    313,243.82x = 469,861.53 × 76,588.54
  4. Step 4: Simplify right side
    313,243.82x = 35,986,008,584.87
  5. Step 5: Solve for x
    x = 35,986,008,584.87/313,243.82
  6. Step 6: Final answer
    x = 114,881.78

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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.