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Finding the Fourth Proportional to 56,910.25, 78,491.73 and 36,494.25

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Solution

The fourth proportional to 56,910.25, 78,491.73 and 36,494.25 is: 50,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.25 : 78,491.73 = 36,494.25 : x
  2. Step 2: Convert to fraction form
    56,910.25/78,491.73 = 36,494.25/x
  3. Step 3: Cross multiply
    56,910.25x = 78,491.73 × 36,494.25
  4. Step 4: Simplify right side
    56,910.25x = 2,864,496,660.06
  5. Step 5: Solve for x
    x = 2,864,496,660.06/56,910.25
  6. Step 6: Final answer
    x = 50,333.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.