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Finding the Fourth Proportional to 190,662.94, 263,105.92 and 104,619.97

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Solution

The fourth proportional to 190,662.94, 263,105.92 and 104,619.97 is: 144,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,662.94 : 263,105.92 = 104,619.97 : x
  2. Step 2: Convert to fraction form
    190,662.94/263,105.92 = 104,619.97/x
  3. Step 3: Cross multiply
    190,662.94x = 263,105.92 × 104,619.97
  4. Step 4: Simplify right side
    190,662.94x = 27,526,133,457.22
  5. Step 5: Solve for x
    x = 27,526,133,457.22/190,662.94
  6. Step 6: Final answer
    x = 144,370.65

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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.