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Finding the Fourth Proportional to 172,559.36, 258,839.22 and 54,241.04

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Solution

The fourth proportional to 172,559.36, 258,839.22 and 54,241.04 is: 81,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,559.36 : 258,839.22 = 54,241.04 : x
  2. Step 2: Convert to fraction form
    172,559.36/258,839.22 = 54,241.04/x
  3. Step 3: Cross multiply
    172,559.36x = 258,839.22 × 54,241.04
  4. Step 4: Simplify right side
    172,559.36x = 14,039,708,485.59
  5. Step 5: Solve for x
    x = 14,039,708,485.59/172,559.36
  6. Step 6: Final answer
    x = 81,361.62

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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.