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Finding the Fourth Proportional to 133,913.53, 200,873.33 and 53,959.54

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Solution

The fourth proportional to 133,913.53, 200,873.33 and 53,959.54 is: 80,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,913.53 : 200,873.33 = 53,959.54 : x
  2. Step 2: Convert to fraction form
    133,913.53/200,873.33 = 53,959.54/x
  3. Step 3: Cross multiply
    133,913.53x = 200,873.33 × 53,959.54
  4. Step 4: Simplify right side
    133,913.53x = 10,839,032,485.07
  5. Step 5: Solve for x
    x = 10,839,032,485.07/133,913.53
  6. Step 6: Final answer
    x = 80,940.53

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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.