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Finding the Fourth Proportional to 273,259.68, 409,968.72 and 113,305.92

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Solution

The fourth proportional to 273,259.68, 409,968.72 and 113,305.92 is: 169,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,259.68 : 409,968.72 = 113,305.92 : x
  2. Step 2: Convert to fraction form
    273,259.68/409,968.72 = 113,305.92/x
  3. Step 3: Cross multiply
    273,259.68x = 409,968.72 × 113,305.92
  4. Step 4: Simplify right side
    273,259.68x = 46,451,882,990.82
  5. Step 5: Solve for x
    x = 46,451,882,990.82/273,259.68
  6. Step 6: Final answer
    x = 169,991.72

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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.