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Finding the Fourth Proportional to 33,000,931.20, 49,481,713.80 and 20,230,600.80

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Solution

The fourth proportional to 33,000,931.20, 49,481,713.80 and 20,230,600.80 is: 30,333,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,000,931.20 : 49,481,713.80 = 20,230,600.80 : x
  2. Step 2: Convert to fraction form
    33,000,931.20/49,481,713.80 = 20,230,600.80/x
  3. Step 3: Cross multiply
    33,000,931.20x = 49,481,713.80 × 20,230,600.80
  4. Step 4: Simplify right side
    33,000,931.20x = 1,001,044,798,787,651
  5. Step 5: Solve for x
    x = 1,001,044,798,787,651/33,000,931.20
  6. Step 6: Final answer
    x = 30,333,834.91

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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.