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Finding the Fourth Proportional to 325,816.51, 449,626.77 and 198,492.01

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Solution

The fourth proportional to 325,816.51, 449,626.77 and 198,492.01 is: 273,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,816.51 : 449,626.77 = 198,492.01 : x
  2. Step 2: Convert to fraction form
    325,816.51/449,626.77 = 198,492.01/x
  3. Step 3: Cross multiply
    325,816.51x = 449,626.77 × 198,492.01
  4. Step 4: Simplify right side
    325,816.51x = 89,247,321,327.11
  5. Step 5: Solve for x
    x = 89,247,321,327.11/325,816.51
  6. Step 6: Final answer
    x = 273,918.97

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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.