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Finding the Fourth Proportional to 327,535.88, 491,011.60 and 127,809.80

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Solution

The fourth proportional to 327,535.88, 491,011.60 and 127,809.80 is: 191,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,535.88 : 491,011.60 = 127,809.80 : x
  2. Step 2: Convert to fraction form
    327,535.88/491,011.60 = 127,809.80/x
  3. Step 3: Cross multiply
    327,535.88x = 491,011.60 × 127,809.80
  4. Step 4: Simplify right side
    327,535.88x = 62,756,094,393.68
  5. Step 5: Solve for x
    x = 62,756,094,393.68/327,535.88
  6. Step 6: Final answer
    x = 191,600.67

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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.