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Finding the Fourth Proportional to 58,940.73, 81,346.61 and 33,453.40

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Solution

The fourth proportional to 58,940.73, 81,346.61 and 33,453.40 is: 46,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,940.73 : 81,346.61 = 33,453.40 : x
  2. Step 2: Convert to fraction form
    58,940.73/81,346.61 = 33,453.40/x
  3. Step 3: Cross multiply
    58,940.73x = 81,346.61 × 33,453.40
  4. Step 4: Simplify right side
    58,940.73x = 2,721,320,682.97
  5. Step 5: Solve for x
    x = 2,721,320,682.97/58,940.73
  6. Step 6: Final answer
    x = 46,170.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.