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Finding the Fourth Proportional to 339,347.35, 508,245.85 and 161,979.22

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Solution

The fourth proportional to 339,347.35, 508,245.85 and 161,979.22 is: 242,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,347.35 : 508,245.85 = 161,979.22 : x
  2. Step 2: Convert to fraction form
    339,347.35/508,245.85 = 161,979.22/x
  3. Step 3: Cross multiply
    339,347.35x = 508,245.85 × 161,979.22
  4. Step 4: Simplify right side
    339,347.35x = 82,325,266,351.24
  5. Step 5: Solve for x
    x = 82,325,266,351.24/339,347.35
  6. Step 6: Final answer
    x = 242,598.82

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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.