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Finding the Fourth Proportional to 100,361.01, 150,566.83 and 70,836.51

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Solution

The fourth proportional to 100,361.01, 150,566.83 and 70,836.51 is: 106,272.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.01 : 150,566.83 = 70,836.51 : x
  2. Step 2: Convert to fraction form
    100,361.01/150,566.83 = 70,836.51/x
  3. Step 3: Cross multiply
    100,361.01x = 150,566.83 × 70,836.51
  4. Step 4: Simplify right side
    100,361.01x = 10,665,628,581.87
  5. Step 5: Solve for x
    x = 10,665,628,581.87/100,361.01
  6. Step 6: Final answer
    x = 106,272.63

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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.