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Finding the Fourth Proportional to 316,791.17, 475,257.67 and 106,423.37

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Solution

The fourth proportional to 316,791.17, 475,257.67 and 106,423.37 is: 159,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,791.17 : 475,257.67 = 106,423.37 : x
  2. Step 2: Convert to fraction form
    316,791.17/475,257.67 = 106,423.37/x
  3. Step 3: Cross multiply
    316,791.17x = 475,257.67 × 106,423.37
  4. Step 4: Simplify right side
    316,791.17x = 50,578,522,859.75
  5. Step 5: Solve for x
    x = 50,578,522,859.75/316,791.17
  6. Step 6: Final answer
    x = 159,658.88

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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.