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Finding the Fourth Proportional to 89,782.98, 134,678.60 and 33,608.58

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Solution

The fourth proportional to 89,782.98, 134,678.60 and 33,608.58 is: 50,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,782.98 : 134,678.60 = 33,608.58 : x
  2. Step 2: Convert to fraction form
    89,782.98/134,678.60 = 33,608.58/x
  3. Step 3: Cross multiply
    89,782.98x = 134,678.60 × 33,608.58
  4. Step 4: Simplify right side
    89,782.98x = 4,526,356,502.39
  5. Step 5: Solve for x
    x = 4,526,356,502.39/89,782.98
  6. Step 6: Final answer
    x = 50,414.42

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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.