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Finding the Fourth Proportional to 207,404.20, 310,760.70 and 194,962.60

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Solution

The fourth proportional to 207,404.20, 310,760.70 and 194,962.60 is: 292,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,404.20 : 310,760.70 = 194,962.60 : x
  2. Step 2: Convert to fraction form
    207,404.20/310,760.70 = 194,962.60/x
  3. Step 3: Cross multiply
    207,404.20x = 310,760.70 × 194,962.60
  4. Step 4: Simplify right side
    207,404.20x = 60,586,714,049.82
  5. Step 5: Solve for x
    x = 60,586,714,049.82/207,404.20
  6. Step 6: Final answer
    x = 292,119.03

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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.