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Finding the Fourth Proportional to 69,814.88, 104,787.92 and 36,558.81

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Solution

The fourth proportional to 69,814.88, 104,787.92 and 36,558.81 is: 54,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.88 : 104,787.92 = 36,558.81 : x
  2. Step 2: Convert to fraction form
    69,814.88/104,787.92 = 36,558.81/x
  3. Step 3: Cross multiply
    69,814.88x = 104,787.92 × 36,558.81
  4. Step 4: Simplify right side
    69,814.88x = 3,830,921,133.64
  5. Step 5: Solve for x
    x = 3,830,921,133.64/69,814.88
  6. Step 6: Final answer
    x = 54,872.56

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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.