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Finding the Fourth Proportional to 132,611.45, 198,880.11 and 52,613.42

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Solution

The fourth proportional to 132,611.45, 198,880.11 and 52,613.42 is: 78,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,611.45 : 198,880.11 = 52,613.42 : x
  2. Step 2: Convert to fraction form
    132,611.45/198,880.11 = 52,613.42/x
  3. Step 3: Cross multiply
    132,611.45x = 198,880.11 × 52,613.42
  4. Step 4: Simplify right side
    132,611.45x = 10,463,761,762.68
  5. Step 5: Solve for x
    x = 10,463,761,762.68/132,611.45
  6. Step 6: Final answer
    x = 78,905.42

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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.