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Finding the Fourth Proportional to 271,689,193.20, 407,533,789.80 and 271,689,193.20

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Solution

The fourth proportional to 271,689,193.20, 407,533,789.80 and 271,689,193.20 is: 407,533,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,689,193.20 : 407,533,789.80 = 271,689,193.20 : x
  2. Step 2: Convert to fraction form
    271,689,193.20/407,533,789.80 = 271,689,193.20/x
  3. Step 3: Cross multiply
    271,689,193.20x = 407,533,789.80 × 271,689,193.20
  4. Step 4: Simplify right side
    271,689,193.20x = 110,722,526,552,500,384
  5. Step 5: Solve for x
    x = 110,722,526,552,500,384/271,689,193.20
  6. Step 6: Final answer
    x = 407,533,789.80

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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.