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Finding the Fourth Proportional to 339,269.64, 508,129.34 and 161,901.20

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Solution

The fourth proportional to 339,269.64, 508,129.34 and 161,901.20 is: 242,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,269.64 : 508,129.34 = 161,901.20 : x
  2. Step 2: Convert to fraction form
    339,269.64/508,129.34 = 161,901.20/x
  3. Step 3: Cross multiply
    339,269.64x = 508,129.34 × 161,901.20
  4. Step 4: Simplify right side
    339,269.64x = 82,266,749,901.21
  5. Step 5: Solve for x
    x = 82,266,749,901.21/339,269.64
  6. Step 6: Final answer
    x = 242,481.91

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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.