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Finding the Fourth Proportional to 226,660.86, 339,954.21 and 66,699.36

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Solution

The fourth proportional to 226,660.86, 339,954.21 and 66,699.36 is: 100,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,660.86 : 339,954.21 = 66,699.36 : x
  2. Step 2: Convert to fraction form
    226,660.86/339,954.21 = 66,699.36/x
  3. Step 3: Cross multiply
    226,660.86x = 339,954.21 × 66,699.36
  4. Step 4: Simplify right side
    226,660.86x = 22,674,728,236.31
  5. Step 5: Solve for x
    x = 22,674,728,236.31/226,660.86
  6. Step 6: Final answer
    x = 100,038.13

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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.