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Finding the Fourth Proportional to 89,480.72, 134,104.44 and 36,837.20

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Solution

The fourth proportional to 89,480.72, 134,104.44 and 36,837.20 is: 55,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,480.72 : 134,104.44 = 36,837.20 : x
  2. Step 2: Convert to fraction form
    89,480.72/134,104.44 = 36,837.20/x
  3. Step 3: Cross multiply
    89,480.72x = 134,104.44 × 36,837.20
  4. Step 4: Simplify right side
    89,480.72x = 4,940,032,077.17
  5. Step 5: Solve for x
    x = 4,940,032,077.17/89,480.72
  6. Step 6: Final answer
    x = 55,207.78

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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.