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Finding the Fourth Proportional to 453,765.67, 680,489.76 and 133,832.65

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Solution

The fourth proportional to 453,765.67, 680,489.76 and 133,832.65 is: 200,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,765.67 : 680,489.76 = 133,832.65 : x
  2. Step 2: Convert to fraction form
    453,765.67/680,489.76 = 133,832.65/x
  3. Step 3: Cross multiply
    453,765.67x = 680,489.76 × 133,832.65
  4. Step 4: Simplify right side
    453,765.67x = 91,071,747,878.66
  5. Step 5: Solve for x
    x = 91,071,747,878.66/453,765.67
  6. Step 6: Final answer
    x = 200,702.16

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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.