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Finding the Fourth Proportional to 101,540.67, 140,162.93 and 59,099.20

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Solution

The fourth proportional to 101,540.67, 140,162.93 and 59,099.20 is: 81,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,540.67 : 140,162.93 = 59,099.20 : x
  2. Step 2: Convert to fraction form
    101,540.67/140,162.93 = 59,099.20/x
  3. Step 3: Cross multiply
    101,540.67x = 140,162.93 × 59,099.20
  4. Step 4: Simplify right side
    101,540.67x = 8,283,517,032.66
  5. Step 5: Solve for x
    x = 8,283,517,032.66/101,540.67
  6. Step 6: Final answer
    x = 81,578.32

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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.