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Finding the Fourth Proportional to 339,286.84, 508,780.76 and 159,423.44

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Solution

The fourth proportional to 339,286.84, 508,780.76 and 159,423.44 is: 239,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,286.84 : 508,780.76 = 159,423.44 : x
  2. Step 2: Convert to fraction form
    339,286.84/508,780.76 = 159,423.44/x
  3. Step 3: Cross multiply
    339,286.84x = 508,780.76 × 159,423.44
  4. Step 4: Simplify right side
    339,286.84x = 81,111,578,965.01
  5. Step 5: Solve for x
    x = 81,111,578,965.01/339,286.84
  6. Step 6: Final answer
    x = 239,064.91

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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.