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Finding the Fourth Proportional to 77,903.37, 107,495.91 and 43,906.46

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Solution

The fourth proportional to 77,903.37, 107,495.91 and 43,906.46 is: 60,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,903.37 : 107,495.91 = 43,906.46 : x
  2. Step 2: Convert to fraction form
    77,903.37/107,495.91 = 43,906.46/x
  3. Step 3: Cross multiply
    77,903.37x = 107,495.91 × 43,906.46
  4. Step 4: Simplify right side
    77,903.37x = 4,719,764,335.10
  5. Step 5: Solve for x
    x = 4,719,764,335.10/77,903.37
  6. Step 6: Final answer
    x = 60,584.85

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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.