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Finding the Fourth Proportional to 141,086.52, 211,629.21 and 51,108.20

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Solution

The fourth proportional to 141,086.52, 211,629.21 and 51,108.20 is: 76,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,086.52 : 211,629.21 = 51,108.20 : x
  2. Step 2: Convert to fraction form
    141,086.52/211,629.21 = 51,108.20/x
  3. Step 3: Cross multiply
    141,086.52x = 211,629.21 × 51,108.20
  4. Step 4: Simplify right side
    141,086.52x = 10,815,987,534.33
  5. Step 5: Solve for x
    x = 10,815,987,534.33/141,086.52
  6. Step 6: Final answer
    x = 76,662.09

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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.