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Finding the Fourth Proportional to 89,003.92, 133,462.32 and 36,399.28

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Solution

The fourth proportional to 89,003.92, 133,462.32 and 36,399.28 is: 54,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,003.92 : 133,462.32 = 36,399.28 : x
  2. Step 2: Convert to fraction form
    89,003.92/133,462.32 = 36,399.28/x
  3. Step 3: Cross multiply
    89,003.92x = 133,462.32 × 36,399.28
  4. Step 4: Simplify right side
    89,003.92x = 4,857,932,355.13
  5. Step 5: Solve for x
    x = 4,857,932,355.13/89,003.92
  6. Step 6: Final answer
    x = 54,581.11

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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.