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Finding the Fourth Proportional to 299,024.91, 448,539.39 and 74,385.59

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Solution

The fourth proportional to 299,024.91, 448,539.39 and 74,385.59 is: 111,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,024.91 : 448,539.39 = 74,385.59 : x
  2. Step 2: Convert to fraction form
    299,024.91/448,539.39 = 74,385.59/x
  3. Step 3: Cross multiply
    299,024.91x = 448,539.39 × 74,385.59
  4. Step 4: Simplify right side
    299,024.91x = 33,364,864,920.69
  5. Step 5: Solve for x
    x = 33,364,864,920.69/299,024.91
  6. Step 6: Final answer
    x = 111,578.88

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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.