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Finding the Fourth Proportional to 264,649.59, 396,586.80 and 131,263.47

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Solution

The fourth proportional to 264,649.59, 396,586.80 and 131,263.47 is: 196,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,649.59 : 396,586.80 = 131,263.47 : x
  2. Step 2: Convert to fraction form
    264,649.59/396,586.80 = 131,263.47/x
  3. Step 3: Cross multiply
    264,649.59x = 396,586.80 × 131,263.47
  4. Step 4: Simplify right side
    264,649.59x = 52,057,359,524.20
  5. Step 5: Solve for x
    x = 52,057,359,524.20/264,649.59
  6. Step 6: Final answer
    x = 196,702.97

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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.