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Finding the Fourth Proportional to 299,102.11, 448,737.90 and 121,736.41

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Solution

The fourth proportional to 299,102.11, 448,737.90 and 121,736.41 is: 182,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,102.11 : 448,737.90 = 121,736.41 : x
  2. Step 2: Convert to fraction form
    299,102.11/448,737.90 = 121,736.41/x
  3. Step 3: Cross multiply
    299,102.11x = 448,737.90 × 121,736.41
  4. Step 4: Simplify right side
    299,102.11x = 54,627,740,976.94
  5. Step 5: Solve for x
    x = 54,627,740,976.94/299,102.11
  6. Step 6: Final answer
    x = 182,639.10

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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.