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Finding the Fourth Proportional to 199,690.67, 298,007.63 and 178,391.54

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Solution

The fourth proportional to 199,690.67, 298,007.63 and 178,391.54 is: 266,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,690.67 : 298,007.63 = 178,391.54 : x
  2. Step 2: Convert to fraction form
    199,690.67/298,007.63 = 178,391.54/x
  3. Step 3: Cross multiply
    199,690.67x = 298,007.63 × 178,391.54
  4. Step 4: Simplify right side
    199,690.67x = 53,162,037,665.45
  5. Step 5: Solve for x
    x = 53,162,037,665.45/199,690.67
  6. Step 6: Final answer
    x = 266,221.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.