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Finding the Fourth Proportional to 335,589.60, 503,559.90 and 135,931.08

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Solution

The fourth proportional to 335,589.60, 503,559.90 and 135,931.08 is: 203,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,589.60 : 503,559.90 = 135,931.08 : x
  2. Step 2: Convert to fraction form
    335,589.60/503,559.90 = 135,931.08/x
  3. Step 3: Cross multiply
    335,589.60x = 503,559.90 × 135,931.08
  4. Step 4: Simplify right side
    335,589.60x = 68,449,441,051.69
  5. Step 5: Solve for x
    x = 68,449,441,051.69/335,589.60
  6. Step 6: Final answer
    x = 203,967.71

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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.