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Finding the Fourth Proportional to 225,986.44, 339,031.61 and 99,662.59

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Solution

The fourth proportional to 225,986.44, 339,031.61 and 99,662.59 is: 149,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,986.44 : 339,031.61 = 99,662.59 : x
  2. Step 2: Convert to fraction form
    225,986.44/339,031.61 = 99,662.59/x
  3. Step 3: Cross multiply
    225,986.44x = 339,031.61 × 99,662.59
  4. Step 4: Simplify right side
    225,986.44x = 33,788,768,344.47
  5. Step 5: Solve for x
    x = 33,788,768,344.47/225,986.44
  6. Step 6: Final answer
    x = 149,516.80

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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.