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Finding the Fourth Proportional to 68,531.80, 102,797.70 and 52,960.60

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Solution

The fourth proportional to 68,531.80, 102,797.70 and 52,960.60 is: 79,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.80 : 102,797.70 = 52,960.60 : x
  2. Step 2: Convert to fraction form
    68,531.80/102,797.70 = 52,960.60/x
  3. Step 3: Cross multiply
    68,531.80x = 102,797.70 × 52,960.60
  4. Step 4: Simplify right side
    68,531.80x = 5,444,227,870.62
  5. Step 5: Solve for x
    x = 5,444,227,870.62/68,531.80
  6. Step 6: Final answer
    x = 79,440.90

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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.