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Finding the Fourth Proportional to 69,011.37, 95,405.52 and 68,379.87

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Solution

The fourth proportional to 69,011.37, 95,405.52 and 68,379.87 is: 94,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,011.37 : 95,405.52 = 68,379.87 : x
  2. Step 2: Convert to fraction form
    69,011.37/95,405.52 = 68,379.87/x
  3. Step 3: Cross multiply
    69,011.37x = 95,405.52 × 68,379.87
  4. Step 4: Simplify right side
    69,011.37x = 6,523,817,054.88
  5. Step 5: Solve for x
    x = 6,523,817,054.88/69,011.37
  6. Step 6: Final answer
    x = 94,532.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.