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Finding the Fourth Proportional to 218,405.88, 327,572.28 and 60,650.28

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Solution

The fourth proportional to 218,405.88, 327,572.28 and 60,650.28 is: 90,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,405.88 : 327,572.28 = 60,650.28 : x
  2. Step 2: Convert to fraction form
    218,405.88/327,572.28 = 60,650.28/x
  3. Step 3: Cross multiply
    218,405.88x = 327,572.28 × 60,650.28
  4. Step 4: Simplify right side
    218,405.88x = 19,867,350,502.24
  5. Step 5: Solve for x
    x = 19,867,350,502.24/218,405.88
  6. Step 6: Final answer
    x = 90,965.27

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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.