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Finding the Fourth Proportional to 77,986.99, 107,614.20 and 43,992.37

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Solution

The fourth proportional to 77,986.99, 107,614.20 and 43,992.37 is: 60,705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,986.99 : 107,614.20 = 43,992.37 : x
  2. Step 2: Convert to fraction form
    77,986.99/107,614.20 = 43,992.37/x
  3. Step 3: Cross multiply
    77,986.99x = 107,614.20 × 43,992.37
  4. Step 4: Simplify right side
    77,986.99x = 4,734,203,703.65
  5. Step 5: Solve for x
    x = 4,734,203,703.65/77,986.99
  6. Step 6: Final answer
    x = 60,705.04

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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.