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Finding the Fourth Proportional to 132,099.40, 198,149.10 and 43,355.80

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Solution

The fourth proportional to 132,099.40, 198,149.10 and 43,355.80 is: 65,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,099.40 : 198,149.10 = 43,355.80 : x
  2. Step 2: Convert to fraction form
    132,099.40/198,149.10 = 43,355.80/x
  3. Step 3: Cross multiply
    132,099.40x = 198,149.10 × 43,355.80
  4. Step 4: Simplify right side
    132,099.40x = 8,590,912,749.78
  5. Step 5: Solve for x
    x = 8,590,912,749.78/132,099.40
  6. Step 6: Final answer
    x = 65,033.70

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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.