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Finding the Fourth Proportional to 111,810.54, 167,732.42 and 36,938.60

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Solution

The fourth proportional to 111,810.54, 167,732.42 and 36,938.60 is: 55,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,810.54 : 167,732.42 = 36,938.60 : x
  2. Step 2: Convert to fraction form
    111,810.54/167,732.42 = 36,938.60/x
  3. Step 3: Cross multiply
    111,810.54x = 167,732.42 × 36,938.60
  4. Step 4: Simplify right side
    111,810.54x = 6,195,800,582.83
  5. Step 5: Solve for x
    x = 6,195,800,582.83/111,810.54
  6. Step 6: Final answer
    x = 55,413.38

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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.