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Finding the Fourth Proportional to 352,382.80, 486,288.60 and 191,237.88

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Solution

The fourth proportional to 352,382.80, 486,288.60 and 191,237.88 is: 263,908.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,382.80 : 486,288.60 = 191,237.88 : x
  2. Step 2: Convert to fraction form
    352,382.80/486,288.60 = 191,237.88/x
  3. Step 3: Cross multiply
    352,382.80x = 486,288.60 × 191,237.88
  4. Step 4: Simplify right side
    352,382.80x = 92,996,800,932.17
  5. Step 5: Solve for x
    x = 92,996,800,932.17/352,382.80
  6. Step 6: Final answer
    x = 263,908.46

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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.