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Finding the Fourth Proportional to 339,499.86, 468,513.12 and 186,535.60

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Solution

The fourth proportional to 339,499.86, 468,513.12 and 186,535.60 is: 257,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,499.86 : 468,513.12 = 186,535.60 : x
  2. Step 2: Convert to fraction form
    339,499.86/468,513.12 = 186,535.60/x
  3. Step 3: Cross multiply
    339,499.86x = 468,513.12 × 186,535.60
  4. Step 4: Simplify right side
    339,499.86x = 87,394,375,947.07
  5. Step 5: Solve for x
    x = 87,394,375,947.07/339,499.86
  6. Step 6: Final answer
    x = 257,420.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.