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Finding the Fourth Proportional to 67,935.44, 101,870.40 and 28,481.96

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Solution

The fourth proportional to 67,935.44, 101,870.40 and 28,481.96 is: 42,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,935.44 : 101,870.40 = 28,481.96 : x
  2. Step 2: Convert to fraction form
    67,935.44/101,870.40 = 28,481.96/x
  3. Step 3: Cross multiply
    67,935.44x = 101,870.40 × 28,481.96
  4. Step 4: Simplify right side
    67,935.44x = 2,901,468,657.98
  5. Step 5: Solve for x
    x = 2,901,468,657.98/67,935.44
  6. Step 6: Final answer
    x = 42,709.21

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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.