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Finding the Fourth Proportional to 133,936.44, 200,908.80 and 67,379.28

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Solution

The fourth proportional to 133,936.44, 200,908.80 and 67,379.28 is: 101,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,936.44 : 200,908.80 = 67,379.28 : x
  2. Step 2: Convert to fraction form
    133,936.44/200,908.80 = 67,379.28/x
  3. Step 3: Cross multiply
    133,936.44x = 200,908.80 × 67,379.28
  4. Step 4: Simplify right side
    133,936.44x = 13,537,090,289.66
  5. Step 5: Solve for x
    x = 13,537,090,289.66/133,936.44
  6. Step 6: Final answer
    x = 101,071.00

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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.