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Finding the Fourth Proportional to 335,674.59, 503,721.74 and 135,996

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Solution

The fourth proportional to 335,674.59, 503,721.74 and 135,996 is: 204,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,674.59 : 503,721.74 = 135,996 : x
  2. Step 2: Convert to fraction form
    335,674.59/503,721.74 = 135,996/x
  3. Step 3: Cross multiply
    335,674.59x = 503,721.74 × 135,996
  4. Step 4: Simplify right side
    335,674.59x = 68,504,141,753.04
  5. Step 5: Solve for x
    x = 68,504,141,753.04/335,674.59
  6. Step 6: Final answer
    x = 204,079.02

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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.