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Finding the Fourth Proportional to 468,321.69, 702,403.43 and 131,285.01

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Solution

The fourth proportional to 468,321.69, 702,403.43 and 131,285.01 is: 196,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,321.69 : 702,403.43 = 131,285.01 : x
  2. Step 2: Convert to fraction form
    468,321.69/702,403.43 = 131,285.01/x
  3. Step 3: Cross multiply
    468,321.69x = 702,403.43 × 131,285.01
  4. Step 4: Simplify right side
    468,321.69x = 92,215,040,675.16
  5. Step 5: Solve for x
    x = 92,215,040,675.16/468,321.69
  6. Step 6: Final answer
    x = 196,905.34

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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.