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Finding the Fourth Proportional to 111,815.69, 167,709.39 and 36,917.47

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Solution

The fourth proportional to 111,815.69, 167,709.39 and 36,917.47 is: 55,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,815.69 : 167,709.39 = 36,917.47 : x
  2. Step 2: Convert to fraction form
    111,815.69/167,709.39 = 36,917.47/x
  3. Step 3: Cross multiply
    111,815.69x = 167,709.39 × 36,917.47
  4. Step 4: Simplify right side
    111,815.69x = 6,191,406,445.24
  5. Step 5: Solve for x
    x = 6,191,406,445.24/111,815.69
  6. Step 6: Final answer
    x = 55,371.54

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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.