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Finding the Fourth Proportional to 299,563.62, 449,345.49 and 74,924.07

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Solution

The fourth proportional to 299,563.62, 449,345.49 and 74,924.07 is: 112,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,563.62 : 449,345.49 = 74,924.07 : x
  2. Step 2: Convert to fraction form
    299,563.62/449,345.49 = 74,924.07/x
  3. Step 3: Cross multiply
    299,563.62x = 449,345.49 × 74,924.07
  4. Step 4: Simplify right side
    299,563.62x = 33,666,794,351.12
  5. Step 5: Solve for x
    x = 33,666,794,351.12/299,563.62
  6. Step 6: Final answer
    x = 112,386.13

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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.