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Finding the Fourth Proportional to 47,333,962.80, 71,008,039.80 and 20,040,202.80

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Solution

The fourth proportional to 47,333,962.80, 71,008,039.80 and 20,040,202.80 is: 30,063,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,333,962.80 : 71,008,039.80 = 20,040,202.80 : x
  2. Step 2: Convert to fraction form
    47,333,962.80/71,008,039.80 = 20,040,202.80/x
  3. Step 3: Cross multiply
    47,333,962.80x = 71,008,039.80 × 20,040,202.80
  4. Step 4: Simplify right side
    47,333,962.80x = 1,423,015,518,022,471.50
  5. Step 5: Solve for x
    x = 1,423,015,518,022,471.50/47,333,962.80
  6. Step 6: Final answer
    x = 30,063,308.33

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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.