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Finding the Fourth Proportional to 198,673.60, 298,010.40 and 48,912.70

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Solution

The fourth proportional to 198,673.60, 298,010.40 and 48,912.70 is: 73,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,673.60 : 298,010.40 = 48,912.70 : x
  2. Step 2: Convert to fraction form
    198,673.60/298,010.40 = 48,912.70/x
  3. Step 3: Cross multiply
    198,673.60x = 298,010.40 × 48,912.70
  4. Step 4: Simplify right side
    198,673.60x = 14,576,493,292.08
  5. Step 5: Solve for x
    x = 14,576,493,292.08/198,673.60
  6. Step 6: Final answer
    x = 73,369.05

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1.5x scale

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.