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Finding the Fourth Proportional to 101,359.54, 139,898.37 and 58,942.54

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Solution

The fourth proportional to 101,359.54, 139,898.37 and 58,942.54 is: 81,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,359.54 : 139,898.37 = 58,942.54 : x
  2. Step 2: Convert to fraction form
    101,359.54/139,898.37 = 58,942.54/x
  3. Step 3: Cross multiply
    101,359.54x = 139,898.37 × 58,942.54
  4. Step 4: Simplify right side
    101,359.54x = 8,245,965,269.66
  5. Step 5: Solve for x
    x = 8,245,965,269.66/101,359.54
  6. Step 6: Final answer
    x = 81,353.62

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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.