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Finding the Fourth Proportional to 143,796.35, 215,694.53 and 55,004.15

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Solution

The fourth proportional to 143,796.35, 215,694.53 and 55,004.15 is: 82,506.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,796.35 : 215,694.53 = 55,004.15 : x
  2. Step 2: Convert to fraction form
    143,796.35/215,694.53 = 55,004.15/x
  3. Step 3: Cross multiply
    143,796.35x = 215,694.53 × 55,004.15
  4. Step 4: Simplify right side
    143,796.35x = 11,864,094,007.28
  5. Step 5: Solve for x
    x = 11,864,094,007.28/143,796.35
  6. Step 6: Final answer
    x = 82,506.23

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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.