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Finding the Fourth Proportional to 263,274.85, 394,554.42 and 111,345.67

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Solution

The fourth proportional to 263,274.85, 394,554.42 and 111,345.67 is: 166,867.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,274.85 : 394,554.42 = 111,345.67 : x
  2. Step 2: Convert to fraction form
    263,274.85/394,554.42 = 111,345.67/x
  3. Step 3: Cross multiply
    263,274.85x = 394,554.42 × 111,345.67
  4. Step 4: Simplify right side
    263,274.85x = 43,931,926,246.36
  5. Step 5: Solve for x
    x = 43,931,926,246.36/263,274.85
  6. Step 6: Final answer
    x = 166,867.16

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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.