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Finding the Fourth Proportional to 132,516.60, 198,722.10 and 43,745.40

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Solution

The fourth proportional to 132,516.60, 198,722.10 and 43,745.40 is: 65,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,516.60 : 198,722.10 = 43,745.40 : x
  2. Step 2: Convert to fraction form
    132,516.60/198,722.10 = 43,745.40/x
  3. Step 3: Cross multiply
    132,516.60x = 198,722.10 × 43,745.40
  4. Step 4: Simplify right side
    132,516.60x = 8,693,177,753.34
  5. Step 5: Solve for x
    x = 8,693,177,753.34/132,516.60
  6. Step 6: Final answer
    x = 65,600.67

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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.