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Finding the Fourth Proportional to 327,756.71, 491,632.34 and 91,098.71

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Solution

The fourth proportional to 327,756.71, 491,632.34 and 91,098.71 is: 136,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,756.71 : 491,632.34 = 91,098.71 : x
  2. Step 2: Convert to fraction form
    327,756.71/491,632.34 = 91,098.71/x
  3. Step 3: Cross multiply
    327,756.71x = 491,632.34 × 91,098.71
  4. Step 4: Simplify right side
    327,756.71x = 44,787,069,054.63
  5. Step 5: Solve for x
    x = 44,787,069,054.63/327,756.71
  6. Step 6: Final answer
    x = 136,647.30

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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.