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Finding the Fourth Proportional to 89,778.44, 134,666.82 and 34,374.44

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Solution

The fourth proportional to 89,778.44, 134,666.82 and 34,374.44 is: 51,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,778.44 : 134,666.82 = 34,374.44 : x
  2. Step 2: Convert to fraction form
    89,778.44/134,666.82 = 34,374.44/x
  3. Step 3: Cross multiply
    89,778.44x = 134,666.82 × 34,374.44
  4. Step 4: Simplify right side
    89,778.44x = 4,629,095,850.75
  5. Step 5: Solve for x
    x = 4,629,095,850.75/89,778.44
  6. Step 6: Final answer
    x = 51,561.33

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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.