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Finding the Fourth Proportional to 93,139.77, 139,625.42 and 33,961.60

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Solution

The fourth proportional to 93,139.77, 139,625.42 and 33,961.60 is: 50,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,139.77 : 139,625.42 = 33,961.60 : x
  2. Step 2: Convert to fraction form
    93,139.77/139,625.42 = 33,961.60/x
  3. Step 3: Cross multiply
    93,139.77x = 139,625.42 × 33,961.60
  4. Step 4: Simplify right side
    93,139.77x = 4,741,902,145.00
  5. Step 5: Solve for x
    x = 4,741,902,145.00/93,139.77
  6. Step 6: Final answer
    x = 50,911.68

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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.