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Finding the Fourth Proportional to 339,809.28, 468,942.48 and 186,854.10

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Solution

The fourth proportional to 339,809.28, 468,942.48 and 186,854.10 is: 257,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,809.28 : 468,942.48 = 186,854.10 : x
  2. Step 2: Convert to fraction form
    339,809.28/468,942.48 = 186,854.10/x
  3. Step 3: Cross multiply
    339,809.28x = 468,942.48 × 186,854.10
  4. Step 4: Simplify right side
    339,809.28x = 87,623,825,052.17
  5. Step 5: Solve for x
    x = 87,623,825,052.17/339,809.28
  6. Step 6: Final answer
    x = 257,861.78

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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.