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Finding the Fourth Proportional to 226,661.86, 339,955.71 and 66,700.36

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Solution

The fourth proportional to 226,661.86, 339,955.71 and 66,700.36 is: 100,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,661.86 : 339,955.71 = 66,700.36 : x
  2. Step 2: Convert to fraction form
    226,661.86/339,955.71 = 66,700.36/x
  3. Step 3: Cross multiply
    226,661.86x = 339,955.71 × 66,700.36
  4. Step 4: Simplify right side
    226,661.86x = 22,675,168,241.06
  5. Step 5: Solve for x
    x = 22,675,168,241.06/226,661.86
  6. Step 6: Final answer
    x = 100,039.63

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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.