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Finding the Fourth Proportional to 453,796.94, 680,699.32 and 129,584.21

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Solution

The fourth proportional to 453,796.94, 680,699.32 and 129,584.21 is: 194,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,796.94 : 680,699.32 = 129,584.21 : x
  2. Step 2: Convert to fraction form
    453,796.94/680,699.32 = 129,584.21/x
  3. Step 3: Cross multiply
    453,796.94x = 680,699.32 × 129,584.21
  4. Step 4: Simplify right side
    453,796.94x = 88,207,879,902.28
  5. Step 5: Solve for x
    x = 88,207,879,902.28/453,796.94
  6. Step 6: Final answer
    x = 194,377.42

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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.