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Finding the Fourth Proportional to 263,910.45, 395,862.33 and 64,231.28

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Solution

The fourth proportional to 263,910.45, 395,862.33 and 64,231.28 is: 96,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,910.45 : 395,862.33 = 64,231.28 : x
  2. Step 2: Convert to fraction form
    263,910.45/395,862.33 = 64,231.28/x
  3. Step 3: Cross multiply
    263,910.45x = 395,862.33 × 64,231.28
  4. Step 4: Simplify right side
    263,910.45x = 25,426,744,159.68
  5. Step 5: Solve for x
    x = 25,426,744,159.68/263,910.45
  6. Step 6: Final answer
    x = 96,346.11

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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.