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Finding the Fourth Proportional to 299,008.20, 448,598.70 and 88,651.20

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Solution

The fourth proportional to 299,008.20, 448,598.70 and 88,651.20 is: 133,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,008.20 : 448,598.70 = 88,651.20 : x
  2. Step 2: Convert to fraction form
    299,008.20/448,598.70 = 88,651.20/x
  3. Step 3: Cross multiply
    299,008.20x = 448,598.70 × 88,651.20
  4. Step 4: Simplify right side
    299,008.20x = 39,768,813,073.44
  5. Step 5: Solve for x
    x = 39,768,813,073.44/299,008.20
  6. Step 6: Final answer
    x = 133,002.42

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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.