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Finding the Fourth Proportional to 74,893.52, 103,352.92 and 43,068.56

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Solution

The fourth proportional to 74,893.52, 103,352.92 and 43,068.56 is: 59,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,893.52 : 103,352.92 = 43,068.56 : x
  2. Step 2: Convert to fraction form
    74,893.52/103,352.92 = 43,068.56/x
  3. Step 3: Cross multiply
    74,893.52x = 103,352.92 × 43,068.56
  4. Step 4: Simplify right side
    74,893.52x = 4,451,261,436.20
  5. Step 5: Solve for x
    x = 4,451,261,436.20/74,893.52
  6. Step 6: Final answer
    x = 59,434.53

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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.