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Finding the Fourth Proportional to 192,690.90, 289,067.31 and 59,539.86

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Solution

The fourth proportional to 192,690.90, 289,067.31 and 59,539.86 is: 89,319.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,690.90 : 289,067.31 = 59,539.86 : x
  2. Step 2: Convert to fraction form
    192,690.90/289,067.31 = 59,539.86/x
  3. Step 3: Cross multiply
    192,690.90x = 289,067.31 × 59,539.86
  4. Step 4: Simplify right side
    192,690.90x = 17,211,027,167.98
  5. Step 5: Solve for x
    x = 17,211,027,167.98/192,690.90
  6. Step 6: Final answer
    x = 89,319.36

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1.5x scale

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.