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Finding the Fourth Proportional to 54,140.68, 74,714.67 and 30,268.66

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Solution

The fourth proportional to 54,140.68, 74,714.67 and 30,268.66 is: 41,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,140.68 : 74,714.67 = 30,268.66 : x
  2. Step 2: Convert to fraction form
    54,140.68/74,714.67 = 30,268.66/x
  3. Step 3: Cross multiply
    54,140.68x = 74,714.67 × 30,268.66
  4. Step 4: Simplify right side
    54,140.68x = 2,261,512,943.24
  5. Step 5: Solve for x
    x = 2,261,512,943.24/54,140.68
  6. Step 6: Final answer
    x = 41,771.05

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