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Finding the Fourth Proportional to 299,367.34, 448,662.20 and 121,667.56

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Solution

The fourth proportional to 299,367.34, 448,662.20 and 121,667.56 is: 182,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,367.34 : 448,662.20 = 121,667.56 : x
  2. Step 2: Convert to fraction form
    299,367.34/448,662.20 = 121,667.56/x
  3. Step 3: Cross multiply
    299,367.34x = 448,662.20 × 121,667.56
  4. Step 4: Simplify right side
    299,367.34x = 54,587,635,138.23
  5. Step 5: Solve for x
    x = 54,587,635,138.23/299,367.34
  6. Step 6: Final answer
    x = 182,343.32

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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.