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Finding the Fourth Proportional to 69,063, 103,733 and 66,793.36

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Solution

The fourth proportional to 69,063, 103,733 and 66,793.36 is: 100,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,063 : 103,733 = 66,793.36 : x
  2. Step 2: Convert to fraction form
    69,063/103,733 = 66,793.36/x
  3. Step 3: Cross multiply
    69,063x = 103,733 × 66,793.36
  4. Step 4: Simplify right side
    69,063x = 6,928,675,612.88
  5. Step 5: Solve for x
    x = 6,928,675,612.88/69,063
  6. Step 6: Final answer
    x = 100,323.99

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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.