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Finding the Fourth Proportional to 111,570.75, 167,356.17 and 28,464.75

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Solution

The fourth proportional to 111,570.75, 167,356.17 and 28,464.75 is: 42,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,570.75 : 167,356.17 = 28,464.75 : x
  2. Step 2: Convert to fraction form
    111,570.75/167,356.17 = 28,464.75/x
  3. Step 3: Cross multiply
    111,570.75x = 167,356.17 × 28,464.75
  4. Step 4: Simplify right side
    111,570.75x = 4,763,751,540.01
  5. Step 5: Solve for x
    x = 4,763,751,540.01/111,570.75
  6. Step 6: Final answer
    x = 42,697.14

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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.