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Finding the Fourth Proportional to 70,991.96, 106,553.57 and 35,956.22

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Solution

The fourth proportional to 70,991.96, 106,553.57 and 35,956.22 is: 53,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,991.96 : 106,553.57 = 35,956.22 : x
  2. Step 2: Convert to fraction form
    70,991.96/106,553.57 = 35,956.22/x
  3. Step 3: Cross multiply
    70,991.96x = 106,553.57 × 35,956.22
  4. Step 4: Simplify right side
    70,991.96x = 3,831,262,892.16
  5. Step 5: Solve for x
    x = 3,831,262,892.16/70,991.96
  6. Step 6: Final answer
    x = 53,967.56

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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.