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Finding the Fourth Proportional to 252,780.44, 379,145.46 and 65,791.96

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Solution

The fourth proportional to 252,780.44, 379,145.46 and 65,791.96 is: 98,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,780.44 : 379,145.46 = 65,791.96 : x
  2. Step 2: Convert to fraction form
    252,780.44/379,145.46 = 65,791.96/x
  3. Step 3: Cross multiply
    252,780.44x = 379,145.46 × 65,791.96
  4. Step 4: Simplify right side
    252,780.44x = 24,944,722,938.50
  5. Step 5: Solve for x
    x = 24,944,722,938.50/252,780.44
  6. Step 6: Final answer
    x = 98,681.38

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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.