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Finding the Fourth Proportional to 69,532.32, 104,299.08 and 45,990.84

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Solution

The fourth proportional to 69,532.32, 104,299.08 and 45,990.84 is: 68,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,532.32 : 104,299.08 = 45,990.84 : x
  2. Step 2: Convert to fraction form
    69,532.32/104,299.08 = 45,990.84/x
  3. Step 3: Cross multiply
    69,532.32x = 104,299.08 × 45,990.84
  4. Step 4: Simplify right side
    69,532.32x = 4,796,802,300.43
  5. Step 5: Solve for x
    x = 4,796,802,300.43/69,532.32
  6. Step 6: Final answer
    x = 68,986.66

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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.