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Finding the Fourth Proportional to 67,806.57, 93,516.12 and 43,611.51

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Solution

The fourth proportional to 67,806.57, 93,516.12 and 43,611.51 is: 60,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,806.57 : 93,516.12 = 43,611.51 : x
  2. Step 2: Convert to fraction form
    67,806.57/93,516.12 = 43,611.51/x
  3. Step 3: Cross multiply
    67,806.57x = 93,516.12 × 43,611.51
  4. Step 4: Simplify right side
    67,806.57x = 4,078,379,553.23
  5. Step 5: Solve for x
    x = 4,078,379,553.23/67,806.57
  6. Step 6: Final answer
    x = 60,147.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.