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Finding the Fourth Proportional to 318,496.53, 477,744.73 and 116,107.81

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Solution

The fourth proportional to 318,496.53, 477,744.73 and 116,107.81 is: 174,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,496.53 : 477,744.73 = 116,107.81 : x
  2. Step 2: Convert to fraction form
    318,496.53/477,744.73 = 116,107.81/x
  3. Step 3: Cross multiply
    318,496.53x = 477,744.73 × 116,107.81
  4. Step 4: Simplify right side
    318,496.53x = 55,469,895,081.66
  5. Step 5: Solve for x
    x = 55,469,895,081.66/318,496.53
  6. Step 6: Final answer
    x = 174,161.69

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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.