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Finding the Fourth Proportional to 252,062.90, 347,871.32 and 188,289.98

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Solution

The fourth proportional to 252,062.90, 347,871.32 and 188,289.98 is: 259,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,062.90 : 347,871.32 = 188,289.98 : x
  2. Step 2: Convert to fraction form
    252,062.90/347,871.32 = 188,289.98/x
  3. Step 3: Cross multiply
    252,062.90x = 347,871.32 × 188,289.98
  4. Step 4: Simplify right side
    252,062.90x = 65,500,682,943.92
  5. Step 5: Solve for x
    x = 65,500,682,943.92/252,062.90
  6. Step 6: Final answer
    x = 259,858.48

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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.