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Finding the Fourth Proportional to 143,995.92, 215,996.99 and 44,153.90

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Solution

The fourth proportional to 143,995.92, 215,996.99 and 44,153.90 is: 66,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.92 : 215,996.99 = 44,153.90 : x
  2. Step 2: Convert to fraction form
    143,995.92/215,996.99 = 44,153.90/x
  3. Step 3: Cross multiply
    143,995.92x = 215,996.99 × 44,153.90
  4. Step 4: Simplify right side
    143,995.92x = 9,537,109,006.00
  5. Step 5: Solve for x
    x = 9,537,109,006.00/143,995.92
  6. Step 6: Final answer
    x = 66,231.80

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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.