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Finding the Fourth Proportional to 132,544.98, 198,942.03 and 69,410.43

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Solution

The fourth proportional to 132,544.98, 198,942.03 and 69,410.43 is: 104,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,544.98 : 198,942.03 = 69,410.43 : x
  2. Step 2: Convert to fraction form
    132,544.98/198,942.03 = 69,410.43/x
  3. Step 3: Cross multiply
    132,544.98x = 198,942.03 × 69,410.43
  4. Step 4: Simplify right side
    132,544.98x = 13,808,651,847.37
  5. Step 5: Solve for x
    x = 13,808,651,847.37/132,544.98
  6. Step 6: Final answer
    x = 104,180.87

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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.