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Finding the Fourth Proportional to 273,616.20, 410,319.74 and 131,420.88

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Solution

The fourth proportional to 273,616.20, 410,319.74 and 131,420.88 is: 197,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,616.20 : 410,319.74 = 131,420.88 : x
  2. Step 2: Convert to fraction form
    273,616.20/410,319.74 = 131,420.88/x
  3. Step 3: Cross multiply
    273,616.20x = 410,319.74 × 131,420.88
  4. Step 4: Simplify right side
    273,616.20x = 53,924,581,312.17
  5. Step 5: Solve for x
    x = 53,924,581,312.17/273,616.20
  6. Step 6: Final answer
    x = 197,081.10

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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.