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Finding the Fourth Proportional to 113,682.88, 156,896.36 and 68,384.44

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Solution

The fourth proportional to 113,682.88, 156,896.36 and 68,384.44 is: 94,378.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,682.88 : 156,896.36 = 68,384.44 : x
  2. Step 2: Convert to fraction form
    113,682.88/156,896.36 = 68,384.44/x
  3. Step 3: Cross multiply
    113,682.88x = 156,896.36 × 68,384.44
  4. Step 4: Simplify right side
    113,682.88x = 10,729,269,716.64
  5. Step 5: Solve for x
    x = 10,729,269,716.64/113,682.88
  6. Step 6: Final answer
    x = 94,378.94

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1.5x scale

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.