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Finding the Fourth Proportional to 299,002.20, 448,589.70 and 88,645.20

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Solution

The fourth proportional to 299,002.20, 448,589.70 and 88,645.20 is: 132,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,002.20 : 448,589.70 = 88,645.20 : x
  2. Step 2: Convert to fraction form
    299,002.20/448,589.70 = 88,645.20/x
  3. Step 3: Cross multiply
    299,002.20x = 448,589.70 × 88,645.20
  4. Step 4: Simplify right side
    299,002.20x = 39,765,323,674.44
  5. Step 5: Solve for x
    x = 39,765,323,674.44/299,002.20
  6. Step 6: Final answer
    x = 132,993.42

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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.