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Finding the Fourth Proportional to 111,608.75, 167,270.73 and 52,313.78

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Solution

The fourth proportional to 111,608.75, 167,270.73 and 52,313.78 is: 78,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,608.75 : 167,270.73 = 52,313.78 : x
  2. Step 2: Convert to fraction form
    111,608.75/167,270.73 = 52,313.78/x
  3. Step 3: Cross multiply
    111,608.75x = 167,270.73 × 52,313.78
  4. Step 4: Simplify right side
    111,608.75x = 8,750,564,169.66
  5. Step 5: Solve for x
    x = 8,750,564,169.66/111,608.75
  6. Step 6: Final answer
    x = 78,403.93

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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.