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Finding the Fourth Proportional to 339,336.84, 508,921.20 and 114,692.31

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Solution

The fourth proportional to 339,336.84, 508,921.20 and 114,692.31 is: 172,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,336.84 : 508,921.20 = 114,692.31 : x
  2. Step 2: Convert to fraction form
    339,336.84/508,921.20 = 114,692.31/x
  3. Step 3: Cross multiply
    339,336.84x = 508,921.20 × 114,692.31
  4. Step 4: Simplify right side
    339,336.84x = 58,369,348,035.97
  5. Step 5: Solve for x
    x = 58,369,348,035.97/339,336.84
  6. Step 6: Final answer
    x = 172,010.05

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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.