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Finding the Fourth Proportional to 218,518.76, 327,719.76 and 60,755.88

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Solution

The fourth proportional to 218,518.76, 327,719.76 and 60,755.88 is: 91,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,518.76 : 327,719.76 = 60,755.88 : x
  2. Step 2: Convert to fraction form
    218,518.76/327,719.76 = 60,755.88/x
  3. Step 3: Cross multiply
    218,518.76x = 327,719.76 × 60,755.88
  4. Step 4: Simplify right side
    218,518.76x = 19,910,902,412.19
  5. Step 5: Solve for x
    x = 19,910,902,412.19/218,518.76
  6. Step 6: Final answer
    x = 91,117.59

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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.