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Finding the Fourth Proportional to 143,900.70, 215,832.15 and 44,070.90

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Solution

The fourth proportional to 143,900.70, 215,832.15 and 44,070.90 is: 66,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,900.70 : 215,832.15 = 44,070.90 : x
  2. Step 2: Convert to fraction form
    143,900.70/215,832.15 = 44,070.90/x
  3. Step 3: Cross multiply
    143,900.70x = 215,832.15 × 44,070.90
  4. Step 4: Simplify right side
    143,900.70x = 9,511,917,099.44
  5. Step 5: Solve for x
    x = 9,511,917,099.44/143,900.70
  6. Step 6: Final answer
    x = 66,100.56

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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.