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Finding the Fourth Proportional to 251,929.64, 347,687.46 and 188,156.72

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Solution

The fourth proportional to 251,929.64, 347,687.46 and 188,156.72 is: 259,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,929.64 : 347,687.46 = 188,156.72 : x
  2. Step 2: Convert to fraction form
    251,929.64/347,687.46 = 188,156.72/x
  3. Step 3: Cross multiply
    251,929.64x = 347,687.46 × 188,156.72
  4. Step 4: Simplify right side
    251,929.64x = 65,419,732,058.73
  5. Step 5: Solve for x
    x = 65,419,732,058.73/251,929.64
  6. Step 6: Final answer
    x = 259,674.61

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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.