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Finding the Fourth Proportional to 73,590.20, 110,166.60 and 43,992.80

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Solution

The fourth proportional to 73,590.20, 110,166.60 and 43,992.80 is: 65,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,590.20 : 110,166.60 = 43,992.80 : x
  2. Step 2: Convert to fraction form
    73,590.20/110,166.60 = 43,992.80/x
  3. Step 3: Cross multiply
    73,590.20x = 110,166.60 × 43,992.80
  4. Step 4: Simplify right side
    73,590.20x = 4,846,537,200.48
  5. Step 5: Solve for x
    x = 4,846,537,200.48/73,590.20
  6. Step 6: Final answer
    x = 65,858.46

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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.