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Finding the Fourth Proportional to 54,051.44, 81,078.99 and 14,608.90

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Solution

The fourth proportional to 54,051.44, 81,078.99 and 14,608.90 is: 21,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.44 : 81,078.99 = 14,608.90 : x
  2. Step 2: Convert to fraction form
    54,051.44/81,078.99 = 14,608.90/x
  3. Step 3: Cross multiply
    54,051.44x = 81,078.99 × 14,608.90
  4. Step 4: Simplify right side
    54,051.44x = 1,184,474,378.57
  5. Step 5: Solve for x
    x = 1,184,474,378.57/54,051.44
  6. Step 6: Final answer
    x = 21,913.84

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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.