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Finding the Fourth Proportional to 70,593.16, 105,858.66 and 33,163.87

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Solution

The fourth proportional to 70,593.16, 105,858.66 and 33,163.87 is: 49,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593.16 : 105,858.66 = 33,163.87 : x
  2. Step 2: Convert to fraction form
    70,593.16/105,858.66 = 33,163.87/x
  3. Step 3: Cross multiply
    70,593.16x = 105,858.66 × 33,163.87
  4. Step 4: Simplify right side
    70,593.16x = 3,510,682,838.61
  5. Step 5: Solve for x
    x = 3,510,682,838.61/70,593.16
  6. Step 6: Final answer
    x = 49,731.20

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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.