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Finding the Fourth Proportional to 68,269.68, 102,428.55 and 35,005.41

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Solution

The fourth proportional to 68,269.68, 102,428.55 and 35,005.41 is: 52,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,269.68 : 102,428.55 = 35,005.41 : x
  2. Step 2: Convert to fraction form
    68,269.68/102,428.55 = 35,005.41/x
  3. Step 3: Cross multiply
    68,269.68x = 102,428.55 × 35,005.41
  4. Step 4: Simplify right side
    68,269.68x = 3,585,553,388.46
  5. Step 5: Solve for x
    x = 3,585,553,388.46/68,269.68
  6. Step 6: Final answer
    x = 52,520.44

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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.