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Finding the Fourth Proportional to 283,992.18, 425,915.34 and 84,265.32

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Solution

The fourth proportional to 283,992.18, 425,915.34 and 84,265.32 is: 126,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,992.18 : 425,915.34 = 84,265.32 : x
  2. Step 2: Convert to fraction form
    283,992.18/425,915.34 = 84,265.32/x
  3. Step 3: Cross multiply
    283,992.18x = 425,915.34 × 84,265.32
  4. Step 4: Simplify right side
    283,992.18x = 35,889,892,418.01
  5. Step 5: Solve for x
    x = 35,889,892,418.01/283,992.18
  6. Step 6: Final answer
    x = 126,376.34

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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.