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Finding the Fourth Proportional to 218,429.46, 327,644.31 and 60,657.93

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Solution

The fourth proportional to 218,429.46, 327,644.31 and 60,657.93 is: 90,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,429.46 : 327,644.31 = 60,657.93 : x
  2. Step 2: Convert to fraction form
    218,429.46/327,644.31 = 60,657.93/x
  3. Step 3: Cross multiply
    218,429.46x = 327,644.31 × 60,657.93
  4. Step 4: Simplify right side
    218,429.46x = 19,874,225,620.88
  5. Step 5: Solve for x
    x = 19,874,225,620.88/218,429.46
  6. Step 6: Final answer
    x = 90,986.93

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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.