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Finding the Fourth Proportional to 111,409.88, 167,120.28 and 36,499.68

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Solution

The fourth proportional to 111,409.88, 167,120.28 and 36,499.68 is: 54,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,409.88 : 167,120.28 = 36,499.68 : x
  2. Step 2: Convert to fraction form
    111,409.88/167,120.28 = 36,499.68/x
  3. Step 3: Cross multiply
    111,409.88x = 167,120.28 × 36,499.68
  4. Step 4: Simplify right side
    111,409.88x = 6,099,836,741.51
  5. Step 5: Solve for x
    x = 6,099,836,741.51/111,409.88
  6. Step 6: Final answer
    x = 54,751.31

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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.