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Finding the Fourth Proportional to 89,048, 133,455.36 and 49,623.68

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Solution

The fourth proportional to 89,048, 133,455.36 and 49,623.68 is: 74,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,048 : 133,455.36 = 49,623.68 : x
  2. Step 2: Convert to fraction form
    89,048/133,455.36 = 49,623.68/x
  3. Step 3: Cross multiply
    89,048x = 133,455.36 × 49,623.68
  4. Step 4: Simplify right side
    89,048x = 6,622,546,078.92
  5. Step 5: Solve for x
    x = 6,622,546,078.92/89,048
  6. Step 6: Final answer
    x = 74,370.52

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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.