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Finding the Fourth Proportional to 69,804.33, 104,666.82 and 47,644.53

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Solution

The fourth proportional to 69,804.33, 104,666.82 and 47,644.53 is: 71,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,804.33 : 104,666.82 = 47,644.53 : x
  2. Step 2: Convert to fraction form
    69,804.33/104,666.82 = 47,644.53/x
  3. Step 3: Cross multiply
    69,804.33x = 104,666.82 × 47,644.53
  4. Step 4: Simplify right side
    69,804.33x = 4,986,801,445.49
  5. Step 5: Solve for x
    x = 4,986,801,445.49/69,804.33
  6. Step 6: Final answer
    x = 71,439.72

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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.