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Finding the Fourth Proportional to 141,285.78, 211,928.85 and 36,104.85

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Solution

The fourth proportional to 141,285.78, 211,928.85 and 36,104.85 is: 54,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,285.78 : 211,928.85 = 36,104.85 : x
  2. Step 2: Convert to fraction form
    141,285.78/211,928.85 = 36,104.85/x
  3. Step 3: Cross multiply
    141,285.78x = 211,928.85 × 36,104.85
  4. Step 4: Simplify right side
    141,285.78x = 7,651,659,339.92
  5. Step 5: Solve for x
    x = 7,651,659,339.92/141,285.78
  6. Step 6: Final answer
    x = 54,157.32

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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.