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Finding the Fourth Proportional to 107,956.86, 161,930.70 and 36,885.87

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Solution

The fourth proportional to 107,956.86, 161,930.70 and 36,885.87 is: 55,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,956.86 : 161,930.70 = 36,885.87 : x
  2. Step 2: Convert to fraction form
    107,956.86/161,930.70 = 36,885.87/x
  3. Step 3: Cross multiply
    107,956.86x = 161,930.70 × 36,885.87
  4. Step 4: Simplify right side
    107,956.86x = 5,972,954,749.21
  5. Step 5: Solve for x
    x = 5,972,954,749.21/107,956.86
  6. Step 6: Final answer
    x = 55,327.24

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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.