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Finding the Fourth Proportional to 339,086.32, 508,613.54 and 125,896.66

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Solution

The fourth proportional to 339,086.32, 508,613.54 and 125,896.66 is: 188,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,086.32 : 508,613.54 = 125,896.66 : x
  2. Step 2: Convert to fraction form
    339,086.32/508,613.54 = 125,896.66/x
  3. Step 3: Cross multiply
    339,086.32x = 508,613.54 × 125,896.66
  4. Step 4: Simplify right side
    339,086.32x = 64,032,745,916.78
  5. Step 5: Solve for x
    x = 64,032,745,916.78/339,086.32
  6. Step 6: Final answer
    x = 188,839.07

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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.