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Finding the Fourth Proportional to 327,539.54, 490,521.99 and 186,871.70

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Solution

The fourth proportional to 327,539.54, 490,521.99 and 186,871.70 is: 279,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,539.54 : 490,521.99 = 186,871.70 : x
  2. Step 2: Convert to fraction form
    327,539.54/490,521.99 = 186,871.70/x
  3. Step 3: Cross multiply
    327,539.54x = 490,521.99 × 186,871.70
  4. Step 4: Simplify right side
    327,539.54x = 91,664,680,085.76
  5. Step 5: Solve for x
    x = 91,664,680,085.76/327,539.54
  6. Step 6: Final answer
    x = 279,858.36

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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.