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Finding the Fourth Proportional to 468,403.89, 702,625.26 and 135,979.89

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Solution

The fourth proportional to 468,403.89, 702,625.26 and 135,979.89 is: 203,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,403.89 : 702,625.26 = 135,979.89 : x
  2. Step 2: Convert to fraction form
    468,403.89/702,625.26 = 135,979.89/x
  3. Step 3: Cross multiply
    468,403.89x = 702,625.26 × 135,979.89
  4. Step 4: Simplify right side
    468,403.89x = 95,542,905,566.02
  5. Step 5: Solve for x
    x = 95,542,905,566.02/468,403.89
  6. Step 6: Final answer
    x = 203,975.47

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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.