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Finding the Fourth Proportional to 339,397.70, 508,887.20 and 114,736.82

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Solution

The fourth proportional to 339,397.70, 508,887.20 and 114,736.82 is: 172,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,397.70 : 508,887.20 = 114,736.82 : x
  2. Step 2: Convert to fraction form
    339,397.70/508,887.20 = 114,736.82/x
  3. Step 3: Cross multiply
    339,397.70x = 508,887.20 × 114,736.82
  4. Step 4: Simplify right side
    339,397.70x = 58,388,099,066.70
  5. Step 5: Solve for x
    x = 58,388,099,066.70/339,397.70
  6. Step 6: Final answer
    x = 172,034.46

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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.