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Finding the Fourth Proportional to 228,157.75, 342,236.67 and 61,945.75

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Solution

The fourth proportional to 228,157.75, 342,236.67 and 61,945.75 is: 92,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,157.75 : 342,236.67 = 61,945.75 : x
  2. Step 2: Convert to fraction form
    228,157.75/342,236.67 = 61,945.75/x
  3. Step 3: Cross multiply
    228,157.75x = 342,236.67 × 61,945.75
  4. Step 4: Simplify right side
    228,157.75x = 21,200,107,200.65
  5. Step 5: Solve for x
    x = 21,200,107,200.65/228,157.75
  6. Step 6: Final answer
    x = 92,918.64

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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.