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Finding the Fourth Proportional to 339,695.52, 468,782.28 and 186,736.56

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Solution

The fourth proportional to 339,695.52, 468,782.28 and 186,736.56 is: 257,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,695.52 : 468,782.28 = 186,736.56 : x
  2. Step 2: Convert to fraction form
    339,695.52/468,782.28 = 186,736.56/x
  3. Step 3: Cross multiply
    339,695.52x = 468,782.28 × 186,736.56
  4. Step 4: Simplify right side
    339,695.52x = 87,538,790,356.16
  5. Step 5: Solve for x
    x = 87,538,790,356.16/339,695.52
  6. Step 6: Final answer
    x = 257,697.81

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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.