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Finding the Fourth Proportional to 68,457.88, 102,660.90 and 29,033.56

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Solution

The fourth proportional to 68,457.88, 102,660.90 and 29,033.56 is: 43,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,457.88 : 102,660.90 = 29,033.56 : x
  2. Step 2: Convert to fraction form
    68,457.88/102,660.90 = 29,033.56/x
  3. Step 3: Cross multiply
    68,457.88x = 102,660.90 × 29,033.56
  4. Step 4: Simplify right side
    68,457.88x = 2,980,611,399.80
  5. Step 5: Solve for x
    x = 2,980,611,399.80/68,457.88
  6. Step 6: Final answer
    x = 43,539.35

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1.5x scale

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.