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Finding the Fourth Proportional to 68,757.54, 103,039.02 and 29,274.90

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Solution

The fourth proportional to 68,757.54, 103,039.02 and 29,274.90 is: 43,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,757.54 : 103,039.02 = 29,274.90 : x
  2. Step 2: Convert to fraction form
    68,757.54/103,039.02 = 29,274.90/x
  3. Step 3: Cross multiply
    68,757.54x = 103,039.02 × 29,274.90
  4. Step 4: Simplify right side
    68,757.54x = 3,016,457,006.60
  5. Step 5: Solve for x
    x = 3,016,457,006.60/68,757.54
  6. Step 6: Final answer
    x = 43,870.93

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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.