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Finding the Fourth Proportional to 198,969.48, 274,571.04 and 108,323.88

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Solution

The fourth proportional to 198,969.48, 274,571.04 and 108,323.88 is: 149,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,969.48 : 274,571.04 = 108,323.88 : x
  2. Step 2: Convert to fraction form
    198,969.48/274,571.04 = 108,323.88/x
  3. Step 3: Cross multiply
    198,969.48x = 274,571.04 × 108,323.88
  4. Step 4: Simplify right side
    198,969.48x = 29,742,600,388.44
  5. Step 5: Solve for x
    x = 29,742,600,388.44/198,969.48
  6. Step 6: Final answer
    x = 149,483.23

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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.