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Finding the Fourth Proportional to 68,156.99, 102,256.35 and 34,900.60

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Solution

The fourth proportional to 68,156.99, 102,256.35 and 34,900.60 is: 52,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,156.99 : 102,256.35 = 34,900.60 : x
  2. Step 2: Convert to fraction form
    68,156.99/102,256.35 = 34,900.60/x
  3. Step 3: Cross multiply
    68,156.99x = 102,256.35 × 34,900.60
  4. Step 4: Simplify right side
    68,156.99x = 3,568,807,584.58
  5. Step 5: Solve for x
    x = 3,568,807,584.58/68,156.99
  6. Step 6: Final answer
    x = 52,361.58

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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.