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Finding the Fourth Proportional to 73,511.88, 110,129.08 and 43,436.38

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Solution

The fourth proportional to 73,511.88, 110,129.08 and 43,436.38 is: 65,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,511.88 : 110,129.08 = 43,436.38 : x
  2. Step 2: Convert to fraction form
    73,511.88/110,129.08 = 43,436.38/x
  3. Step 3: Cross multiply
    73,511.88x = 110,129.08 × 43,436.38
  4. Step 4: Simplify right side
    73,511.88x = 4,783,608,567.93
  5. Step 5: Solve for x
    x = 4,783,608,567.93/73,511.88
  6. Step 6: Final answer
    x = 65,072.59

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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.