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Finding the Fourth Proportional to 231,253.37, 346,917.48 and 71,291.90

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Solution

The fourth proportional to 231,253.37, 346,917.48 and 71,291.90 is: 106,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,253.37 : 346,917.48 = 71,291.90 : x
  2. Step 2: Convert to fraction form
    231,253.37/346,917.48 = 71,291.90/x
  3. Step 3: Cross multiply
    231,253.37x = 346,917.48 × 71,291.90
  4. Step 4: Simplify right side
    231,253.37x = 24,732,407,860.70
  5. Step 5: Solve for x
    x = 24,732,407,860.70/231,253.37
  6. Step 6: Final answer
    x = 106,949.39

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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.