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Finding the Fourth Proportional to 296,991.56, 445,475.19 and 107,456.42

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Solution

The fourth proportional to 296,991.56, 445,475.19 and 107,456.42 is: 161,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,991.56 : 445,475.19 = 107,456.42 : x
  2. Step 2: Convert to fraction form
    296,991.56/445,475.19 = 107,456.42/x
  3. Step 3: Cross multiply
    296,991.56x = 445,475.19 × 107,456.42
  4. Step 4: Simplify right side
    296,991.56x = 47,869,170,632.87
  5. Step 5: Solve for x
    x = 47,869,170,632.87/296,991.56
  6. Step 6: Final answer
    x = 161,180.24

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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.