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Finding the Fourth Proportional to 102,993.66, 154,365.73 and 43,704.78

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Solution

The fourth proportional to 102,993.66, 154,365.73 and 43,704.78 is: 65,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,993.66 : 154,365.73 = 43,704.78 : x
  2. Step 2: Convert to fraction form
    102,993.66/154,365.73 = 43,704.78/x
  3. Step 3: Cross multiply
    102,993.66x = 154,365.73 × 43,704.78
  4. Step 4: Simplify right side
    102,993.66x = 6,746,519,278.84
  5. Step 5: Solve for x
    x = 6,746,519,278.84/102,993.66
  6. Step 6: Final answer
    x = 65,504.22

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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.