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Finding the Fourth Proportional to 103,761.84, 155,657.16 and 33,618.48

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Solution

The fourth proportional to 103,761.84, 155,657.16 and 33,618.48 is: 50,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,761.84 : 155,657.16 = 33,618.48 : x
  2. Step 2: Convert to fraction form
    103,761.84/155,657.16 = 33,618.48/x
  3. Step 3: Cross multiply
    103,761.84x = 155,657.16 × 33,618.48
  4. Step 4: Simplify right side
    103,761.84x = 5,232,957,120.32
  5. Step 5: Solve for x
    x = 5,232,957,120.32/103,761.84
  6. Step 6: Final answer
    x = 50,432.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.