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Finding the Fourth Proportional to 103,331.80, 155,040.90 and 33,232.60

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Solution

The fourth proportional to 103,331.80, 155,040.90 and 33,232.60 is: 49,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,331.80 : 155,040.90 = 33,232.60 : x
  2. Step 2: Convert to fraction form
    103,331.80/155,040.90 = 33,232.60/x
  3. Step 3: Cross multiply
    103,331.80x = 155,040.90 × 33,232.60
  4. Step 4: Simplify right side
    103,331.80x = 5,152,412,213.34
  5. Step 5: Solve for x
    x = 5,152,412,213.34/103,331.80
  6. Step 6: Final answer
    x = 49,862.79

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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.