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Finding the Fourth Proportional to 69,836.88, 104,755.32 and 57,498.96

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Solution

The fourth proportional to 69,836.88, 104,755.32 and 57,498.96 is: 86,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,836.88 : 104,755.32 = 57,498.96 : x
  2. Step 2: Convert to fraction form
    69,836.88/104,755.32 = 57,498.96/x
  3. Step 3: Cross multiply
    69,836.88x = 104,755.32 × 57,498.96
  4. Step 4: Simplify right side
    69,836.88x = 6,023,321,954.47
  5. Step 5: Solve for x
    x = 6,023,321,954.47/69,836.88
  6. Step 6: Final answer
    x = 86,248.44

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Why These Related Problems?

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