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Finding the Fourth Proportional to 111,476.16, 167,296.25 and 74,023.79

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Solution

The fourth proportional to 111,476.16, 167,296.25 and 74,023.79 is: 111,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,476.16 : 167,296.25 = 74,023.79 : x
  2. Step 2: Convert to fraction form
    111,476.16/167,296.25 = 74,023.79/x
  3. Step 3: Cross multiply
    111,476.16x = 167,296.25 × 74,023.79
  4. Step 4: Simplify right side
    111,476.16x = 12,383,901,826.37
  5. Step 5: Solve for x
    x = 12,383,901,826.37/111,476.16
  6. Step 6: Final answer
    x = 111,090.14

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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.