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Finding the Fourth Proportional to 174,649,615.20, 261,974,422.80 and 123,589,288.80

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Solution

The fourth proportional to 174,649,615.20, 261,974,422.80 and 123,589,288.80 is: 185,383,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,649,615.20 : 261,974,422.80 = 123,589,288.80 : x
  2. Step 2: Convert to fraction form
    174,649,615.20/261,974,422.80 = 123,589,288.80/x
  3. Step 3: Cross multiply
    174,649,615.20x = 261,974,422.80 × 123,589,288.80
  4. Step 4: Simplify right side
    174,649,615.20x = 32,377,232,597,642,504
  5. Step 5: Solve for x
    x = 32,377,232,597,642,504/174,649,615.20
  6. Step 6: Final answer
    x = 185,383,933.20

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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.