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Finding the Fourth Proportional to 350,453.96, 525,680.87 and 84,214.47

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Solution

The fourth proportional to 350,453.96, 525,680.87 and 84,214.47 is: 126,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,453.96 : 525,680.87 = 84,214.47 : x
  2. Step 2: Convert to fraction form
    350,453.96/525,680.87 = 84,214.47/x
  3. Step 3: Cross multiply
    350,453.96x = 525,680.87 × 84,214.47
  4. Step 4: Simplify right side
    350,453.96x = 44,269,935,435.12
  5. Step 5: Solve for x
    x = 44,269,935,435.12/350,453.96
  6. Step 6: Final answer
    x = 126,321.69

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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.