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Finding the Fourth Proportional to 74,551.66, 102,797.31 and 54,372.94

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Solution

The fourth proportional to 74,551.66, 102,797.31 and 54,372.94 is: 74,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,551.66 : 102,797.31 = 54,372.94 : x
  2. Step 2: Convert to fraction form
    74,551.66/102,797.31 = 54,372.94/x
  3. Step 3: Cross multiply
    74,551.66x = 102,797.31 × 54,372.94
  4. Step 4: Simplify right side
    74,551.66x = 5,589,391,968.79
  5. Step 5: Solve for x
    x = 5,589,391,968.79/74,551.66
  6. Step 6: Final answer
    x = 74,973.41

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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.