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Finding the Fourth Proportional to 263,429.28, 395,161.54 and 92,630.59

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Solution

The fourth proportional to 263,429.28, 395,161.54 and 92,630.59 is: 138,952.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,429.28 : 395,161.54 = 92,630.59 : x
  2. Step 2: Convert to fraction form
    263,429.28/395,161.54 = 92,630.59/x
  3. Step 3: Cross multiply
    263,429.28x = 395,161.54 × 92,630.59
  4. Step 4: Simplify right side
    263,429.28x = 36,604,045,376.03
  5. Step 5: Solve for x
    x = 36,604,045,376.03/263,429.28
  6. Step 6: Final answer
    x = 138,952.08

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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.