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Finding the Fourth Proportional to 218,200.39, 327,263.46 and 60,391.87

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Solution

The fourth proportional to 218,200.39, 327,263.46 and 60,391.87 is: 90,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,200.39 : 327,263.46 = 60,391.87 : x
  2. Step 2: Convert to fraction form
    218,200.39/327,263.46 = 60,391.87/x
  3. Step 3: Cross multiply
    218,200.39x = 327,263.46 × 60,391.87
  4. Step 4: Simplify right side
    218,200.39x = 19,764,052,332.07
  5. Step 5: Solve for x
    x = 19,764,052,332.07/218,200.39
  6. Step 6: Final answer
    x = 90,577.53

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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.