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Finding the Fourth Proportional to 143,375.49, 215,049.33 and 43,536.55

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Solution

The fourth proportional to 143,375.49, 215,049.33 and 43,536.55 is: 65,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,375.49 : 215,049.33 = 43,536.55 : x
  2. Step 2: Convert to fraction form
    143,375.49/215,049.33 = 43,536.55/x
  3. Step 3: Cross multiply
    143,375.49x = 215,049.33 × 43,536.55
  4. Step 4: Simplify right side
    143,375.49x = 9,362,505,873.56
  5. Step 5: Solve for x
    x = 9,362,505,873.56/143,375.49
  6. Step 6: Final answer
    x = 65,300.60

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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.