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Finding the Fourth Proportional to 93,105.37, 139,727.34 and 45,745.88

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Solution

The fourth proportional to 93,105.37, 139,727.34 and 45,745.88 is: 68,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,105.37 : 139,727.34 = 45,745.88 : x
  2. Step 2: Convert to fraction form
    93,105.37/139,727.34 = 45,745.88/x
  3. Step 3: Cross multiply
    93,105.37x = 139,727.34 × 45,745.88
  4. Step 4: Simplify right side
    93,105.37x = 6,391,950,477.68
  5. Step 5: Solve for x
    x = 6,391,950,477.68/93,105.37
  6. Step 6: Final answer
    x = 68,652.87

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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.