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Finding the Fourth Proportional to 323,219.64, 484,604.19 and 143,207.22

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Solution

The fourth proportional to 323,219.64, 484,604.19 and 143,207.22 is: 214,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,219.64 : 484,604.19 = 143,207.22 : x
  2. Step 2: Convert to fraction form
    323,219.64/484,604.19 = 143,207.22/x
  3. Step 3: Cross multiply
    323,219.64x = 484,604.19 × 143,207.22
  4. Step 4: Simplify right side
    323,219.64x = 69,398,818,850.25
  5. Step 5: Solve for x
    x = 69,398,818,850.25/323,219.64
  6. Step 6: Final answer
    x = 214,711.02

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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.