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Finding the Fourth Proportional to 263,630.29, 395,363.62 and 95,128.74

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Solution

The fourth proportional to 263,630.29, 395,363.62 and 95,128.74 is: 142,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,630.29 : 395,363.62 = 95,128.74 : x
  2. Step 2: Convert to fraction form
    263,630.29/395,363.62 = 95,128.74/x
  3. Step 3: Cross multiply
    263,630.29x = 395,363.62 × 95,128.74
  4. Step 4: Simplify right side
    263,630.29x = 37,610,443,012.44
  5. Step 5: Solve for x
    x = 37,610,443,012.44/263,630.29
  6. Step 6: Final answer
    x = 142,663.59

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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.