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Finding the Fourth Proportional to 92,490.89, 138,736.40 and 22,370.27

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Solution

The fourth proportional to 92,490.89, 138,736.40 and 22,370.27 is: 33,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,490.89 : 138,736.40 = 22,370.27 : x
  2. Step 2: Convert to fraction form
    92,490.89/138,736.40 = 22,370.27/x
  3. Step 3: Cross multiply
    92,490.89x = 138,736.40 × 22,370.27
  4. Step 4: Simplify right side
    92,490.89x = 3,103,569,921.29
  5. Step 5: Solve for x
    x = 3,103,569,921.29/92,490.89
  6. Step 6: Final answer
    x = 33,555.41

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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.