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Finding the Fourth Proportional to 252,093.91, 347,889.63 and 137,372.60

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Solution

The fourth proportional to 252,093.91, 347,889.63 and 137,372.60 is: 189,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,093.91 : 347,889.63 = 137,372.60 : x
  2. Step 2: Convert to fraction form
    252,093.91/347,889.63 = 137,372.60/x
  3. Step 3: Cross multiply
    252,093.91x = 347,889.63 × 137,372.60
  4. Step 4: Simplify right side
    252,093.91x = 47,790,502,986.14
  5. Step 5: Solve for x
    x = 47,790,502,986.14/252,093.91
  6. Step 6: Final answer
    x = 189,574.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.