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Finding the Fourth Proportional to 335,636.84, 503,238.31 and 143,636.62

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Solution

The fourth proportional to 335,636.84, 503,238.31 and 143,636.62 is: 215,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,636.84 : 503,238.31 = 143,636.62 : x
  2. Step 2: Convert to fraction form
    335,636.84/503,238.31 = 143,636.62/x
  3. Step 3: Cross multiply
    335,636.84x = 503,238.31 × 143,636.62
  4. Step 4: Simplify right side
    335,636.84x = 72,283,449,902.91
  5. Step 5: Solve for x
    x = 72,283,449,902.91/335,636.84
  6. Step 6: Final answer
    x = 215,362.09

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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.