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Finding the Fourth Proportional to 131,846.94, 197,690.67 and 51,789.07

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Solution

The fourth proportional to 131,846.94, 197,690.67 and 51,789.07 is: 77,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,846.94 : 197,690.67 = 51,789.07 : x
  2. Step 2: Convert to fraction form
    131,846.94/197,690.67 = 51,789.07/x
  3. Step 3: Cross multiply
    131,846.94x = 197,690.67 × 51,789.07
  4. Step 4: Simplify right side
    131,846.94x = 10,238,215,452.75
  5. Step 5: Solve for x
    x = 10,238,215,452.75/131,846.94
  6. Step 6: Final answer
    x = 77,652.28

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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.