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Finding the Fourth Proportional to 57,149.73, 78,867.81 and 34,203.27

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Solution

The fourth proportional to 57,149.73, 78,867.81 and 34,203.27 is: 47,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,149.73 : 78,867.81 = 34,203.27 : x
  2. Step 2: Convert to fraction form
    57,149.73/78,867.81 = 34,203.27/x
  3. Step 3: Cross multiply
    57,149.73x = 78,867.81 × 34,203.27
  4. Step 4: Simplify right side
    57,149.73x = 2,697,536,999.74
  5. Step 5: Solve for x
    x = 2,697,536,999.74/57,149.73
  6. Step 6: Final answer
    x = 47,201.22

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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.