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Finding the Fourth Proportional to 188,190.27, 282,059.42 and 81,544.86

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Solution

The fourth proportional to 188,190.27, 282,059.42 and 81,544.86 is: 122,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,190.27 : 282,059.42 = 81,544.86 : x
  2. Step 2: Convert to fraction form
    188,190.27/282,059.42 = 81,544.86/x
  3. Step 3: Cross multiply
    188,190.27x = 282,059.42 × 81,544.86
  4. Step 4: Simplify right side
    188,190.27x = 23,000,495,507.86
  5. Step 5: Solve for x
    x = 23,000,495,507.86/188,190.27
  6. Step 6: Final answer
    x = 122,219.37

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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.