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Finding the Fourth Proportional to 273,350.20, 409,830.90 and 104,805.40

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Solution

The fourth proportional to 273,350.20, 409,830.90 and 104,805.40 is: 157,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,350.20 : 409,830.90 = 104,805.40 : x
  2. Step 2: Convert to fraction form
    273,350.20/409,830.90 = 104,805.40/x
  3. Step 3: Cross multiply
    273,350.20x = 409,830.90 × 104,805.40
  4. Step 4: Simplify right side
    273,350.20x = 42,952,491,406.86
  5. Step 5: Solve for x
    x = 42,952,491,406.86/273,350.20
  6. Step 6: Final answer
    x = 157,133.56

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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.