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Finding the Fourth Proportional to 299,049.44, 448,575.78 and 88,689.20

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Solution

The fourth proportional to 299,049.44, 448,575.78 and 88,689.20 is: 133,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,049.44 : 448,575.78 = 88,689.20 : x
  2. Step 2: Convert to fraction form
    299,049.44/448,575.78 = 88,689.20/x
  3. Step 3: Cross multiply
    299,049.44x = 448,575.78 × 88,689.20
  4. Step 4: Simplify right side
    299,049.44x = 39,783,827,067.58
  5. Step 5: Solve for x
    x = 39,783,827,067.58/299,049.44
  6. Step 6: Final answer
    x = 133,034.28

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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.