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Finding the Fourth Proportional to 92,443.48, 138,728.58 and 33,279.64

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Solution

The fourth proportional to 92,443.48, 138,728.58 and 33,279.64 is: 49,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,443.48 : 138,728.58 = 33,279.64 : x
  2. Step 2: Convert to fraction form
    92,443.48/138,728.58 = 33,279.64/x
  3. Step 3: Cross multiply
    92,443.48x = 138,728.58 × 33,279.64
  4. Step 4: Simplify right side
    92,443.48x = 4,616,837,200.11
  5. Step 5: Solve for x
    x = 4,616,837,200.11/92,443.48
  6. Step 6: Final answer
    x = 49,942.27

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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.