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Finding the Fourth Proportional to 111,415.42, 167,130.87 and 44,855.43

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Solution

The fourth proportional to 111,415.42, 167,130.87 and 44,855.43 is: 67,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,415.42 : 167,130.87 = 44,855.43 : x
  2. Step 2: Convert to fraction form
    111,415.42/167,130.87 = 44,855.43/x
  3. Step 3: Cross multiply
    111,415.42x = 167,130.87 × 44,855.43
  4. Step 4: Simplify right side
    111,415.42x = 7,496,727,040.12
  5. Step 5: Solve for x
    x = 7,496,727,040.12/111,415.42
  6. Step 6: Final answer
    x = 67,286.26

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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.