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Finding the Fourth Proportional to 111,832, 167,748 and 28,726

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Solution

The fourth proportional to 111,832, 167,748 and 28,726 is: 43,089

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,832 : 167,748 = 28,726 : x
  2. Step 2: Convert to fraction form
    111,832/167,748 = 28,726/x
  3. Step 3: Cross multiply
    111,832x = 167,748 × 28,726
  4. Step 4: Simplify right side
    111,832x = 4,818,729,048
  5. Step 5: Solve for x
    x = 4,818,729,048/111,832
  6. Step 6: Final answer
    x = 43,089

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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.