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Finding the Fourth Proportional to 49,894.77, 68,720.90 and 43,180.59

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Solution

The fourth proportional to 49,894.77, 68,720.90 and 43,180.59 is: 59,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,894.77 : 68,720.90 = 43,180.59 : x
  2. Step 2: Convert to fraction form
    49,894.77/68,720.90 = 43,180.59/x
  3. Step 3: Cross multiply
    49,894.77x = 68,720.90 × 43,180.59
  4. Step 4: Simplify right side
    49,894.77x = 2,967,408,791.43
  5. Step 5: Solve for x
    x = 2,967,408,791.43/49,894.77
  6. Step 6: Final answer
    x = 59,473.34

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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.