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Finding the Fourth Proportional to 68,901.42, 103,375.14 and 26,782.92

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Solution

The fourth proportional to 68,901.42, 103,375.14 and 26,782.92 is: 40,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,901.42 : 103,375.14 = 26,782.92 : x
  2. Step 2: Convert to fraction form
    68,901.42/103,375.14 = 26,782.92/x
  3. Step 3: Cross multiply
    68,901.42x = 103,375.14 × 26,782.92
  4. Step 4: Simplify right side
    68,901.42x = 2,768,688,104.61
  5. Step 5: Solve for x
    x = 2,768,688,104.61/68,901.42
  6. Step 6: Final answer
    x = 40,183.32

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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.