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Finding the Fourth Proportional to 45,163.70, 67,741.71 and 18,502.08

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Solution

The fourth proportional to 45,163.70, 67,741.71 and 18,502.08 is: 27,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,163.70 : 67,741.71 = 18,502.08 : x
  2. Step 2: Convert to fraction form
    45,163.70/67,741.71 = 18,502.08/x
  3. Step 3: Cross multiply
    45,163.70x = 67,741.71 × 18,502.08
  4. Step 4: Simplify right side
    45,163.70x = 1,253,362,456.90
  5. Step 5: Solve for x
    x = 1,253,362,456.90/45,163.70
  6. Step 6: Final answer
    x = 27,751.54

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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.