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Finding the Fourth Proportional to 271,505.79, 374,716.94 and 156,761.73

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Solution

The fourth proportional to 271,505.79, 374,716.94 and 156,761.73 is: 216,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,505.79 : 374,716.94 = 156,761.73 : x
  2. Step 2: Convert to fraction form
    271,505.79/374,716.94 = 156,761.73/x
  3. Step 3: Cross multiply
    271,505.79x = 374,716.94 × 156,761.73
  4. Step 4: Simplify right side
    271,505.79x = 58,741,274,990.90
  5. Step 5: Solve for x
    x = 58,741,274,990.90/271,505.79
  6. Step 6: Final answer
    x = 216,353.67

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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.