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Finding the Fourth Proportional to 201,885.44, 278,614.52 and 111,241.36

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Solution

The fourth proportional to 201,885.44, 278,614.52 and 111,241.36 is: 153,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,885.44 : 278,614.52 = 111,241.36 : x
  2. Step 2: Convert to fraction form
    201,885.44/278,614.52 = 111,241.36/x
  3. Step 3: Cross multiply
    201,885.44x = 278,614.52 × 111,241.36
  4. Step 4: Simplify right side
    201,885.44x = 30,993,458,120.55
  5. Step 5: Solve for x
    x = 30,993,458,120.55/201,885.44
  6. Step 6: Final answer
    x = 153,520.03

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1.5x scale

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.