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Finding the Fourth Proportional to 339,262.63, 508,118.85 and 161,894.20

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Solution

The fourth proportional to 339,262.63, 508,118.85 and 161,894.20 is: 242,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,262.63 : 508,118.85 = 161,894.20 : x
  2. Step 2: Convert to fraction form
    339,262.63/508,118.85 = 161,894.20/x
  3. Step 3: Cross multiply
    339,262.63x = 508,118.85 × 161,894.20
  4. Step 4: Simplify right side
    339,262.63x = 82,261,494,725.67
  5. Step 5: Solve for x
    x = 82,261,494,725.67/339,262.63
  6. Step 6: Final answer
    x = 242,471.43

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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.