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Finding the Fourth Proportional to 33,000,811.20, 49,481,533.80 and 20,230,480.80

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Solution

The fourth proportional to 33,000,811.20, 49,481,533.80 and 20,230,480.80 is: 30,333,654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,000,811.20 : 49,481,533.80 = 20,230,480.80 : x
  2. Step 2: Convert to fraction form
    33,000,811.20/49,481,533.80 = 20,230,480.80/x
  3. Step 3: Cross multiply
    33,000,811.20x = 49,481,533.80 × 20,230,480.80
  4. Step 4: Simplify right side
    33,000,811.20x = 1,001,035,219,495,451
  5. Step 5: Solve for x
    x = 1,001,035,219,495,451/33,000,811.20
  6. Step 6: Final answer
    x = 30,333,654.93

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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.