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Finding the Fourth Proportional to 144,701.22, 217,043.43 and 43,497.09

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Solution

The fourth proportional to 144,701.22, 217,043.43 and 43,497.09 is: 65,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,701.22 : 217,043.43 = 43,497.09 : x
  2. Step 2: Convert to fraction form
    144,701.22/217,043.43 = 43,497.09/x
  3. Step 3: Cross multiply
    144,701.22x = 217,043.43 × 43,497.09
  4. Step 4: Simplify right side
    144,701.22x = 9,440,757,608.62
  5. Step 5: Solve for x
    x = 9,440,757,608.62/144,701.22
  6. Step 6: Final answer
    x = 65,243.11

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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.