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Finding the Fourth Proportional to 111,370.14, 166,975.80 and 52,173.54

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Solution

The fourth proportional to 111,370.14, 166,975.80 and 52,173.54 is: 78,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,370.14 : 166,975.80 = 52,173.54 : x
  2. Step 2: Convert to fraction form
    111,370.14/166,975.80 = 52,173.54/x
  3. Step 3: Cross multiply
    111,370.14x = 166,975.80 × 52,173.54
  4. Step 4: Simplify right side
    111,370.14x = 8,711,718,580.33
  5. Step 5: Solve for x
    x = 8,711,718,580.33/111,370.14
  6. Step 6: Final answer
    x = 78,223.11

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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.