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Finding the Fourth Proportional to 373,492.75, 515,438.22 and 210,200.26

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Solution

The fourth proportional to 373,492.75, 515,438.22 and 210,200.26 is: 290,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,492.75 : 515,438.22 = 210,200.26 : x
  2. Step 2: Convert to fraction form
    373,492.75/515,438.22 = 210,200.26/x
  3. Step 3: Cross multiply
    373,492.75x = 515,438.22 × 210,200.26
  4. Step 4: Simplify right side
    373,492.75x = 108,345,247,857.94
  5. Step 5: Solve for x
    x = 108,345,247,857.94/373,492.75
  6. Step 6: Final answer
    x = 290,086.62

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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.