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Finding the Fourth Proportional to 92,294.84, 138,449.05 and 33,131.03

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Solution

The fourth proportional to 92,294.84, 138,449.05 and 33,131.03 is: 49,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,294.84 : 138,449.05 = 33,131.03 : x
  2. Step 2: Convert to fraction form
    92,294.84/138,449.05 = 33,131.03/x
  3. Step 3: Cross multiply
    92,294.84x = 138,449.05 × 33,131.03
  4. Step 4: Simplify right side
    92,294.84x = 4,586,958,853.95
  5. Step 5: Solve for x
    x = 4,586,958,853.95/92,294.84
  6. Step 6: Final answer
    x = 49,698.97

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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.