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Finding the Fourth Proportional to 339,568.80, 509,223.60 and 102,832.80

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Solution

The fourth proportional to 339,568.80, 509,223.60 and 102,832.80 is: 154,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,568.80 : 509,223.60 = 102,832.80 : x
  2. Step 2: Convert to fraction form
    339,568.80/509,223.60 = 102,832.80/x
  3. Step 3: Cross multiply
    339,568.80x = 509,223.60 × 102,832.80
  4. Step 4: Simplify right side
    339,568.80x = 52,364,888,614.08
  5. Step 5: Solve for x
    x = 52,364,888,614.08/339,568.80
  6. Step 6: Final answer
    x = 154,209.95

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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.