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Finding the Fourth Proportional to 299,356.32, 449,034.48 and 88,993.92

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Solution

The fourth proportional to 299,356.32, 449,034.48 and 88,993.92 is: 133,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,356.32 : 449,034.48 = 88,993.92 : x
  2. Step 2: Convert to fraction form
    299,356.32/449,034.48 = 88,993.92/x
  3. Step 3: Cross multiply
    299,356.32x = 449,034.48 × 88,993.92
  4. Step 4: Simplify right side
    299,356.32x = 39,961,338,590.36
  5. Step 5: Solve for x
    x = 39,961,338,590.36/299,356.32
  6. Step 6: Final answer
    x = 133,490.88

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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.