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Finding the Fourth Proportional to 176,077.87, 264,086.12 and 81,299.97

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Solution

The fourth proportional to 176,077.87, 264,086.12 and 81,299.97 is: 121,935.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,077.87 : 264,086.12 = 81,299.97 : x
  2. Step 2: Convert to fraction form
    176,077.87/264,086.12 = 81,299.97/x
  3. Step 3: Cross multiply
    176,077.87x = 264,086.12 × 81,299.97
  4. Step 4: Simplify right side
    176,077.87x = 21,470,193,836.67
  5. Step 5: Solve for x
    x = 21,470,193,836.67/176,077.87
  6. Step 6: Final answer
    x = 121,935.79

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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.