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Finding the Fourth Proportional to 327,159.06, 490,738.59 and 90,495.60

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Solution

The fourth proportional to 327,159.06, 490,738.59 and 90,495.60 is: 135,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,159.06 : 490,738.59 = 90,495.60 : x
  2. Step 2: Convert to fraction form
    327,159.06/490,738.59 = 90,495.60/x
  3. Step 3: Cross multiply
    327,159.06x = 490,738.59 × 90,495.60
  4. Step 4: Simplify right side
    327,159.06x = 44,409,683,145.20
  5. Step 5: Solve for x
    x = 44,409,683,145.20/327,159.06
  6. Step 6: Final answer
    x = 135,743.40

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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.