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Finding the Fourth Proportional to 267,802,945.20, 401,704,417.80 and 73,744,311.60

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Solution

The fourth proportional to 267,802,945.20, 401,704,417.80 and 73,744,311.60 is: 110,616,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,802,945.20 : 401,704,417.80 = 73,744,311.60 : x
  2. Step 2: Convert to fraction form
    267,802,945.20/401,704,417.80 = 73,744,311.60/x
  3. Step 3: Cross multiply
    267,802,945.20x = 401,704,417.80 × 73,744,311.60
  4. Step 4: Simplify right side
    267,802,945.20x = 29,623,415,757,339,784
  5. Step 5: Solve for x
    x = 29,623,415,757,339,784/267,802,945.20
  6. Step 6: Final answer
    x = 110,616,467.40

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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.