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Finding the Fourth Proportional to 132,236.63, 198,312.83 and 43,469.68

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Solution

The fourth proportional to 132,236.63, 198,312.83 and 43,469.68 is: 65,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,236.63 : 198,312.83 = 43,469.68 : x
  2. Step 2: Convert to fraction form
    132,236.63/198,312.83 = 43,469.68/x
  3. Step 3: Cross multiply
    132,236.63x = 198,312.83 × 43,469.68
  4. Step 4: Simplify right side
    132,236.63x = 8,620,594,051.08
  5. Step 5: Solve for x
    x = 8,620,594,051.08/132,236.63
  6. Step 6: Final answer
    x = 65,190.67

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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.