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Finding the Fourth Proportional to 218,560.16, 327,775.44 and 93,872

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Solution

The fourth proportional to 218,560.16, 327,775.44 and 93,872 is: 140,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,560.16 : 327,775.44 = 93,872 : x
  2. Step 2: Convert to fraction form
    218,560.16/327,775.44 = 93,872/x
  3. Step 3: Cross multiply
    218,560.16x = 327,775.44 × 93,872
  4. Step 4: Simplify right side
    218,560.16x = 30,768,936,103.68
  5. Step 5: Solve for x
    x = 30,768,936,103.68/218,560.16
  6. Step 6: Final answer
    x = 140,780.17

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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.