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Finding the Fourth Proportional to 111,361.65, 167,079.15 and 74,068.44

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Solution

The fourth proportional to 111,361.65, 167,079.15 and 74,068.44 is: 111,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,361.65 : 167,079.15 = 74,068.44 : x
  2. Step 2: Convert to fraction form
    111,361.65/167,079.15 = 74,068.44/x
  3. Step 3: Cross multiply
    111,361.65x = 167,079.15 × 74,068.44
  4. Step 4: Simplify right side
    111,361.65x = 12,375,291,997.03
  5. Step 5: Solve for x
    x = 12,375,291,997.03/111,361.65
  6. Step 6: Final answer
    x = 111,127.05

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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.