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Finding the Fourth Proportional to 74,074.38, 111,128.05 and 29,100.09

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Solution

The fourth proportional to 74,074.38, 111,128.05 and 29,100.09 is: 43,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,074.38 : 111,128.05 = 29,100.09 : x
  2. Step 2: Convert to fraction form
    74,074.38/111,128.05 = 29,100.09/x
  3. Step 3: Cross multiply
    74,074.38x = 111,128.05 × 29,100.09
  4. Step 4: Simplify right side
    74,074.38x = 3,233,836,084.53
  5. Step 5: Solve for x
    x = 3,233,836,084.53/74,074.38
  6. Step 6: Final answer
    x = 43,656.61

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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.