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Finding the Fourth Proportional to 58,768.61, 81,099.84 and 33,274.31

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Solution

The fourth proportional to 58,768.61, 81,099.84 and 33,274.31 is: 45,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,768.61 : 81,099.84 = 33,274.31 : x
  2. Step 2: Convert to fraction form
    58,768.61/81,099.84 = 33,274.31/x
  3. Step 3: Cross multiply
    58,768.61x = 81,099.84 × 33,274.31
  4. Step 4: Simplify right side
    58,768.61x = 2,698,541,205.41
  5. Step 5: Solve for x
    x = 2,698,541,205.41/58,768.61
  6. Step 6: Final answer
    x = 45,918.07

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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.