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Finding the Fourth Proportional to 299,531.32, 449,298.42 and 122,040.12

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Solution

The fourth proportional to 299,531.32, 449,298.42 and 122,040.12 is: 183,060.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,531.32 : 449,298.42 = 122,040.12 : x
  2. Step 2: Convert to fraction form
    299,531.32/449,298.42 = 122,040.12/x
  3. Step 3: Cross multiply
    299,531.32x = 449,298.42 × 122,040.12
  4. Step 4: Simplify right side
    299,531.32x = 54,832,433,092.61
  5. Step 5: Solve for x
    x = 54,832,433,092.61/299,531.32
  6. Step 6: Final answer
    x = 183,060.77

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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.