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Finding the Fourth Proportional to 299,726.07, 449,578.70 and 75,088.43

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Solution

The fourth proportional to 299,726.07, 449,578.70 and 75,088.43 is: 112,630.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,726.07 : 449,578.70 = 75,088.43 : x
  2. Step 2: Convert to fraction form
    299,726.07/449,578.70 = 75,088.43/x
  3. Step 3: Cross multiply
    299,726.07x = 449,578.70 × 75,088.43
  4. Step 4: Simplify right side
    299,726.07x = 33,758,158,744.44
  5. Step 5: Solve for x
    x = 33,758,158,744.44/299,726.07
  6. Step 6: Final answer
    x = 112,630.04

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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.