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Finding the Fourth Proportional to 68,422.68, 102,601.14 and 35,125.56

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Solution

The fourth proportional to 68,422.68, 102,601.14 and 35,125.56 is: 52,671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,422.68 : 102,601.14 = 35,125.56 : x
  2. Step 2: Convert to fraction form
    68,422.68/102,601.14 = 35,125.56/x
  3. Step 3: Cross multiply
    68,422.68x = 102,601.14 × 35,125.56
  4. Step 4: Simplify right side
    68,422.68x = 3,603,922,499.14
  5. Step 5: Solve for x
    x = 3,603,922,499.14/68,422.68
  6. Step 6: Final answer
    x = 52,671.46

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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.