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Finding the Fourth Proportional to 299,661.74, 449,509.88 and 112,674.86

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Solution

The fourth proportional to 299,661.74, 449,509.88 and 112,674.86 is: 169,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,661.74 : 449,509.88 = 112,674.86 : x
  2. Step 2: Convert to fraction form
    299,661.74/449,509.88 = 112,674.86/x
  3. Step 3: Cross multiply
    299,661.74x = 449,509.88 × 112,674.86
  4. Step 4: Simplify right side
    299,661.74x = 50,648,462,797.62
  5. Step 5: Solve for x
    x = 50,648,462,797.62/299,661.74
  6. Step 6: Final answer
    x = 169,018.78

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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.