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Finding the Fourth Proportional to 69,814.37, 104,787.17 and 36,558.31

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Solution

The fourth proportional to 69,814.37, 104,787.17 and 36,558.31 is: 54,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.37 : 104,787.17 = 36,558.31 : x
  2. Step 2: Convert to fraction form
    69,814.37/104,787.17 = 36,558.31/x
  3. Step 3: Cross multiply
    69,814.37x = 104,787.17 × 36,558.31
  4. Step 4: Simplify right side
    69,814.37x = 3,830,841,480.97
  5. Step 5: Solve for x
    x = 3,830,841,480.97/69,814.37
  6. Step 6: Final answer
    x = 54,871.82

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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.