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Finding the Fourth Proportional to 327,533.73, 490,513.28 and 186,865.89

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Solution

The fourth proportional to 327,533.73, 490,513.28 and 186,865.89 is: 279,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,533.73 : 490,513.28 = 186,865.89 : x
  2. Step 2: Convert to fraction form
    327,533.73/490,513.28 = 186,865.89/x
  3. Step 3: Cross multiply
    327,533.73x = 490,513.28 × 186,865.89
  4. Step 4: Simplify right side
    327,533.73x = 91,660,199,689.69
  5. Step 5: Solve for x
    x = 91,660,199,689.69/327,533.73
  6. Step 6: Final answer
    x = 279,849.65

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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.