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Finding the Fourth Proportional to 263,631, 395,364.72 and 95,129.40

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Solution

The fourth proportional to 263,631, 395,364.72 and 95,129.40 is: 142,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,631 : 395,364.72 = 95,129.40 : x
  2. Step 2: Convert to fraction form
    263,631/395,364.72 = 95,129.40/x
  3. Step 3: Cross multiply
    263,631x = 395,364.72 × 95,129.40
  4. Step 4: Simplify right side
    263,631x = 37,610,808,594.77
  5. Step 5: Solve for x
    x = 37,610,808,594.77/263,631
  6. Step 6: Final answer
    x = 142,664.59

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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.