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Finding the Fourth Proportional to 143,294.55, 214,614.08 and 68,467.26

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Solution

The fourth proportional to 143,294.55, 214,614.08 and 68,467.26 is: 102,544.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,294.55 : 214,614.08 = 68,467.26 : x
  2. Step 2: Convert to fraction form
    143,294.55/214,614.08 = 68,467.26/x
  3. Step 3: Cross multiply
    143,294.55x = 214,614.08 × 68,467.26
  4. Step 4: Simplify right side
    143,294.55x = 14,694,037,672.68
  5. Step 5: Solve for x
    x = 14,694,037,672.68/143,294.55
  6. Step 6: Final answer
    x = 102,544.29

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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.