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Finding the Fourth Proportional to 54,247, 81,370.52 and 26,161.83

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Solution

The fourth proportional to 54,247, 81,370.52 and 26,161.83 is: 39,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,247 : 81,370.52 = 26,161.83 : x
  2. Step 2: Convert to fraction form
    54,247/81,370.52 = 26,161.83/x
  3. Step 3: Cross multiply
    54,247x = 81,370.52 × 26,161.83
  4. Step 4: Simplify right side
    54,247x = 2,128,801,173.59
  5. Step 5: Solve for x
    x = 2,128,801,173.59/54,247
  6. Step 6: Final answer
    x = 39,242.74

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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.