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Finding the Fourth Proportional to 316,998.87, 437,503.29 and 196,179.12

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Solution

The fourth proportional to 316,998.87, 437,503.29 and 196,179.12 is: 270,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,998.87 : 437,503.29 = 196,179.12 : x
  2. Step 2: Convert to fraction form
    316,998.87/437,503.29 = 196,179.12/x
  3. Step 3: Cross multiply
    316,998.87x = 437,503.29 × 196,179.12
  4. Step 4: Simplify right side
    316,998.87x = 85,829,010,429.30
  5. Step 5: Solve for x
    x = 85,829,010,429.30/316,998.87
  6. Step 6: Final answer
    x = 270,754.94

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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.