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Finding the Fourth Proportional to 269,524,685.88, 404,271,088.02 and 75,431,805.48

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Solution

The fourth proportional to 269,524,685.88, 404,271,088.02 and 75,431,805.48 is: 113,143,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,524,685.88 : 404,271,088.02 = 75,431,805.48 : x
  2. Step 2: Convert to fraction form
    269,524,685.88/404,271,088.02 = 75,431,805.48/x
  3. Step 3: Cross multiply
    269,524,685.88x = 404,271,088.02 × 75,431,805.48
  4. Step 4: Simplify right side
    269,524,685.88x = 30,494,898,072,712,600
  5. Step 5: Solve for x
    x = 30,494,898,072,712,600/269,524,685.88
  6. Step 6: Final answer
    x = 113,143,246.87

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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.