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Finding the Fourth Proportional to 200,366.43, 300,072.58 and 115,948.63

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Solution

The fourth proportional to 200,366.43, 300,072.58 and 115,948.63 is: 173,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,366.43 : 300,072.58 = 115,948.63 : x
  2. Step 2: Convert to fraction form
    200,366.43/300,072.58 = 115,948.63/x
  3. Step 3: Cross multiply
    200,366.43x = 300,072.58 × 115,948.63
  4. Step 4: Simplify right side
    200,366.43x = 34,793,004,551.57
  5. Step 5: Solve for x
    x = 34,793,004,551.57/200,366.43
  6. Step 6: Final answer
    x = 173,646.88

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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.