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Finding the Fourth Proportional to 194,766.67, 268,776.89 and 108,720.67

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Solution

The fourth proportional to 194,766.67, 268,776.89 and 108,720.67 is: 150,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,766.67 : 268,776.89 = 108,720.67 : x
  2. Step 2: Convert to fraction form
    194,766.67/268,776.89 = 108,720.67/x
  3. Step 3: Cross multiply
    194,766.67x = 268,776.89 × 108,720.67
  4. Step 4: Simplify right side
    194,766.67x = 29,221,603,561.32
  5. Step 5: Solve for x
    x = 29,221,603,561.32/194,766.67
  6. Step 6: Final answer
    x = 150,033.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.