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Finding the Fourth Proportional to 68,933.57, 103,335.71 and 26,840.66

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Solution

The fourth proportional to 68,933.57, 103,335.71 and 26,840.66 is: 40,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,933.57 : 103,335.71 = 26,840.66 : x
  2. Step 2: Convert to fraction form
    68,933.57/103,335.71 = 26,840.66/x
  3. Step 3: Cross multiply
    68,933.57x = 103,335.71 × 26,840.66
  4. Step 4: Simplify right side
    68,933.57x = 2,773,598,007.09
  5. Step 5: Solve for x
    x = 2,773,598,007.09/68,933.57
  6. Step 6: Final answer
    x = 40,235.81

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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.