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Finding the Fourth Proportional to 198,693.75, 274,198.67 and 108,050.70

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Solution

The fourth proportional to 198,693.75, 274,198.67 and 108,050.70 is: 149,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,693.75 : 274,198.67 = 108,050.70 : x
  2. Step 2: Convert to fraction form
    198,693.75/274,198.67 = 108,050.70/x
  3. Step 3: Cross multiply
    198,693.75x = 274,198.67 × 108,050.70
  4. Step 4: Simplify right side
    198,693.75x = 29,627,358,502.70
  5. Step 5: Solve for x
    x = 29,627,358,502.70/198,693.75
  6. Step 6: Final answer
    x = 149,110.67

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1.5x scale

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.