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Finding the Fourth Proportional to 461,162.80, 691,841.40 and 194,786.20

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Solution

The fourth proportional to 461,162.80, 691,841.40 and 194,786.20 is: 292,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,162.80 : 691,841.40 = 194,786.20 : x
  2. Step 2: Convert to fraction form
    461,162.80/691,841.40 = 194,786.20/x
  3. Step 3: Cross multiply
    461,162.80x = 691,841.40 × 194,786.20
  4. Step 4: Simplify right side
    461,162.80x = 134,761,157,308.68
  5. Step 5: Solve for x
    x = 134,761,157,308.68/461,162.80
  6. Step 6: Final answer
    x = 292,220.36

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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.