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Finding the Fourth Proportional to 93,171.35, 139,640.37 and 73,371.71

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Solution

The fourth proportional to 93,171.35, 139,640.37 and 73,371.71 is: 109,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,171.35 : 139,640.37 = 73,371.71 : x
  2. Step 2: Convert to fraction form
    93,171.35/139,640.37 = 73,371.71/x
  3. Step 3: Cross multiply
    93,171.35x = 139,640.37 × 73,371.71
  4. Step 4: Simplify right side
    93,171.35x = 10,245,652,033.73
  5. Step 5: Solve for x
    x = 10,245,652,033.73/93,171.35
  6. Step 6: Final answer
    x = 109,965.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.