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Finding the Fourth Proportional to 267,497,906.40, 401,246,859.60 and 239,437,821.60

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Solution

The fourth proportional to 267,497,906.40, 401,246,859.60 and 239,437,821.60 is: 359,156,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,497,906.40 : 401,246,859.60 = 239,437,821.60 : x
  2. Step 2: Convert to fraction form
    267,497,906.40/401,246,859.60 = 239,437,821.60/x
  3. Step 3: Cross multiply
    267,497,906.40x = 401,246,859.60 × 239,437,821.60
  4. Step 4: Simplify right side
    267,497,906.40x = 96,073,673,986,465,056
  5. Step 5: Solve for x
    x = 96,073,673,986,465,056/267,497,906.40
  6. Step 6: Final answer
    x = 359,156,732.40

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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.