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Finding the Fourth Proportional to 89,299.98, 133,950 and 69,593.28

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Solution

The fourth proportional to 89,299.98, 133,950 and 69,593.28 is: 104,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,299.98 : 133,950 = 69,593.28 : x
  2. Step 2: Convert to fraction form
    89,299.98/133,950 = 69,593.28/x
  3. Step 3: Cross multiply
    89,299.98x = 133,950 × 69,593.28
  4. Step 4: Simplify right side
    89,299.98x = 9,322,019,856
  5. Step 5: Solve for x
    x = 9,322,019,856/89,299.98
  6. Step 6: Final answer
    x = 104,389.94

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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.