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Finding the Fourth Proportional to 201,676.40, 302,514.60 and 149,188.40

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Solution

The fourth proportional to 201,676.40, 302,514.60 and 149,188.40 is: 223,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676.40 : 302,514.60 = 149,188.40 : x
  2. Step 2: Convert to fraction form
    201,676.40/302,514.60 = 149,188.40/x
  3. Step 3: Cross multiply
    201,676.40x = 302,514.60 × 149,188.40
  4. Step 4: Simplify right side
    201,676.40x = 45,131,669,150.64
  5. Step 5: Solve for x
    x = 45,131,669,150.64/201,676.40
  6. Step 6: Final answer
    x = 223,782.60

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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.