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Finding the Fourth Proportional to 104,212.88, 143,811.90 and 58,889.90

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Solution

The fourth proportional to 104,212.88, 143,811.90 and 58,889.90 is: 81,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,212.88 : 143,811.90 = 58,889.90 : x
  2. Step 2: Convert to fraction form
    104,212.88/143,811.90 = 58,889.90/x
  3. Step 3: Cross multiply
    104,212.88x = 143,811.90 × 58,889.90
  4. Step 4: Simplify right side
    104,212.88x = 8,469,067,690.75
  5. Step 5: Solve for x
    x = 8,469,067,690.75/104,212.88
  6. Step 6: Final answer
    x = 81,266.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.