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Finding the Fourth Proportional to 198,630.96, 274,096.44 and 113,745.84

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Solution

The fourth proportional to 198,630.96, 274,096.44 and 113,745.84 is: 156,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,630.96 : 274,096.44 = 113,745.84 : x
  2. Step 2: Convert to fraction form
    198,630.96/274,096.44 = 113,745.84/x
  3. Step 3: Cross multiply
    198,630.96x = 274,096.44 × 113,745.84
  4. Step 4: Simplify right side
    198,630.96x = 31,177,329,808.81
  5. Step 5: Solve for x
    x = 31,177,329,808.81/198,630.96
  6. Step 6: Final answer
    x = 156,961.08

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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.