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Finding the Fourth Proportional to 299,961.20, 450,233.40 and 181,863.20

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Solution

The fourth proportional to 299,961.20, 450,233.40 and 181,863.20 is: 272,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,961.20 : 450,233.40 = 181,863.20 : x
  2. Step 2: Convert to fraction form
    299,961.20/450,233.40 = 181,863.20/x
  3. Step 3: Cross multiply
    299,961.20x = 450,233.40 × 181,863.20
  4. Step 4: Simplify right side
    299,961.20x = 81,880,886,870.88
  5. Step 5: Solve for x
    x = 81,880,886,870.88/299,961.20
  6. Step 6: Final answer
    x = 272,971.59

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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.