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Finding the Fourth Proportional to 66,936.76, 100,268.45 and 37,370.34

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Solution

The fourth proportional to 66,936.76, 100,268.45 and 37,370.34 is: 55,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936.76 : 100,268.45 = 37,370.34 : x
  2. Step 2: Convert to fraction form
    66,936.76/100,268.45 = 37,370.34/x
  3. Step 3: Cross multiply
    66,936.76x = 100,268.45 × 37,370.34
  4. Step 4: Simplify right side
    66,936.76x = 3,747,066,067.77
  5. Step 5: Solve for x
    x = 3,747,066,067.77/66,936.76
  6. Step 6: Final answer
    x = 55,979.20

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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.