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Finding the Fourth Proportional to 316,336.59, 436,530.56 and 193,791.51

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Solution

The fourth proportional to 316,336.59, 436,530.56 and 193,791.51 is: 267,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,336.59 : 436,530.56 = 193,791.51 : x
  2. Step 2: Convert to fraction form
    316,336.59/436,530.56 = 193,791.51/x
  3. Step 3: Cross multiply
    316,336.59x = 436,530.56 × 193,791.51
  4. Step 4: Simplify right side
    316,336.59x = 84,595,915,414.59
  5. Step 5: Solve for x
    x = 84,595,915,414.59/316,336.59
  6. Step 6: Final answer
    x = 267,423.74

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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.