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Finding the Fourth Proportional to 53,963.01, 80,943.99 and 30,270.51

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Solution

The fourth proportional to 53,963.01, 80,943.99 and 30,270.51 is: 45,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,963.01 : 80,943.99 = 30,270.51 : x
  2. Step 2: Convert to fraction form
    53,963.01/80,943.99 = 30,270.51/x
  3. Step 3: Cross multiply
    53,963.01x = 80,943.99 × 30,270.51
  4. Step 4: Simplify right side
    53,963.01x = 2,450,215,858.73
  5. Step 5: Solve for x
    x = 2,450,215,858.73/53,963.01
  6. Step 6: Final answer
    x = 45,405.47

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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.