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Finding the Fourth Proportional to 143,937.56, 215,912.82 and 44,090.48

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Solution

The fourth proportional to 143,937.56, 215,912.82 and 44,090.48 is: 66,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.56 : 215,912.82 = 44,090.48 : x
  2. Step 2: Convert to fraction form
    143,937.56/215,912.82 = 44,090.48/x
  3. Step 3: Cross multiply
    143,937.56x = 215,912.82 × 44,090.48
  4. Step 4: Simplify right side
    143,937.56x = 9,519,699,871.95
  5. Step 5: Solve for x
    x = 9,519,699,871.95/143,937.56
  6. Step 6: Final answer
    x = 66,137.70

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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.