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Finding the Fourth Proportional to 189,859.60, 284,789.40 and 101,067.40

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Solution

The fourth proportional to 189,859.60, 284,789.40 and 101,067.40 is: 151,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,859.60 : 284,789.40 = 101,067.40 : x
  2. Step 2: Convert to fraction form
    189,859.60/284,789.40 = 101,067.40/x
  3. Step 3: Cross multiply
    189,859.60x = 284,789.40 × 101,067.40
  4. Step 4: Simplify right side
    189,859.60x = 28,782,924,205.56
  5. Step 5: Solve for x
    x = 28,782,924,205.56/189,859.60
  6. Step 6: Final answer
    x = 151,601.10

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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.