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Finding the Fourth Proportional to 92,540.88, 138,812.13 and 22,420.26

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Solution

The fourth proportional to 92,540.88, 138,812.13 and 22,420.26 is: 33,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,540.88 : 138,812.13 = 22,420.26 : x
  2. Step 2: Convert to fraction form
    92,540.88/138,812.13 = 22,420.26/x
  3. Step 3: Cross multiply
    92,540.88x = 138,812.13 × 22,420.26
  4. Step 4: Simplify right side
    92,540.88x = 3,112,204,045.75
  5. Step 5: Solve for x
    x = 3,112,204,045.75/92,540.88
  6. Step 6: Final answer
    x = 33,630.59

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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.