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Finding the Fourth Proportional to 267,689,315.20, 401,533,972.80 and 238,463,996.80

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Solution

The fourth proportional to 267,689,315.20, 401,533,972.80 and 238,463,996.80 is: 357,695,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,689,315.20 : 401,533,972.80 = 238,463,996.80 : x
  2. Step 2: Convert to fraction form
    267,689,315.20/401,533,972.80 = 238,463,996.80/x
  3. Step 3: Cross multiply
    267,689,315.20x = 401,533,972.80 × 238,463,996.80
  4. Step 4: Simplify right side
    267,689,315.20x = 95,751,396,004,870,496
  5. Step 5: Solve for x
    x = 95,751,396,004,870,496/267,689,315.20
  6. Step 6: Final answer
    x = 357,695,995.20

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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.