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Finding the Fourth Proportional to 48,840.67, 73,203.60 and 20,743.19

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Solution

The fourth proportional to 48,840.67, 73,203.60 and 20,743.19 is: 31,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,840.67 : 73,203.60 = 20,743.19 : x
  2. Step 2: Convert to fraction form
    48,840.67/73,203.60 = 20,743.19/x
  3. Step 3: Cross multiply
    48,840.67x = 73,203.60 × 20,743.19
  4. Step 4: Simplify right side
    48,840.67x = 1,518,476,183.48
  5. Step 5: Solve for x
    x = 1,518,476,183.48/48,840.67
  6. Step 6: Final answer
    x = 31,090.40

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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.