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Finding the Fourth Proportional to 372,890.56, 514,589.90 and 203,125.92

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Solution

The fourth proportional to 372,890.56, 514,589.90 and 203,125.92 is: 280,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,890.56 : 514,589.90 = 203,125.92 : x
  2. Step 2: Convert to fraction form
    372,890.56/514,589.90 = 203,125.92/x
  3. Step 3: Cross multiply
    372,890.56x = 514,589.90 × 203,125.92
  4. Step 4: Simplify right side
    372,890.56x = 104,526,546,860.21
  5. Step 5: Solve for x
    x = 104,526,546,860.21/372,890.56
  6. Step 6: Final answer
    x = 280,314.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.