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Finding the Fourth Proportional to 101,224.19, 151,928.43 and 53,879.05

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Solution

The fourth proportional to 101,224.19, 151,928.43 and 53,879.05 is: 80,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,224.19 : 151,928.43 = 53,879.05 : x
  2. Step 2: Convert to fraction form
    101,224.19/151,928.43 = 53,879.05/x
  3. Step 3: Cross multiply
    101,224.19x = 151,928.43 × 53,879.05
  4. Step 4: Simplify right side
    101,224.19x = 8,185,759,476.39
  5. Step 5: Solve for x
    x = 8,185,759,476.39/101,224.19
  6. Step 6: Final answer
    x = 80,867.62

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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.