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Finding the Fourth Proportional to 327,231.60, 491,106.60 and 127,647.60

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Solution

The fourth proportional to 327,231.60, 491,106.60 and 127,647.60 is: 191,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,231.60 : 491,106.60 = 127,647.60 : x
  2. Step 2: Convert to fraction form
    327,231.60/491,106.60 = 127,647.60/x
  3. Step 3: Cross multiply
    327,231.60x = 491,106.60 × 127,647.60
  4. Step 4: Simplify right side
    327,231.60x = 62,688,578,834.16
  5. Step 5: Solve for x
    x = 62,688,578,834.16/327,231.60
  6. Step 6: Final answer
    x = 191,572.51

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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.