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Finding the Fourth Proportional to 300,661.53, 414,919.60 and 171,597.43

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Solution

The fourth proportional to 300,661.53, 414,919.60 and 171,597.43 is: 236,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,661.53 : 414,919.60 = 171,597.43 : x
  2. Step 2: Convert to fraction form
    300,661.53/414,919.60 = 171,597.43/x
  3. Step 3: Cross multiply
    300,661.53x = 414,919.60 × 171,597.43
  4. Step 4: Simplify right side
    300,661.53x = 71,199,134,942.03
  5. Step 5: Solve for x
    x = 71,199,134,942.03/300,661.53
  6. Step 6: Final answer
    x = 236,808.26

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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.