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Finding the Fourth Proportional to 267,617.20, 401,368.20 and 117,857.20

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Solution

The fourth proportional to 267,617.20, 401,368.20 and 117,857.20 is: 176,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,617.20 : 401,368.20 = 117,857.20 : x
  2. Step 2: Convert to fraction form
    267,617.20/401,368.20 = 117,857.20/x
  3. Step 3: Cross multiply
    267,617.20x = 401,368.20 × 117,857.20
  4. Step 4: Simplify right side
    267,617.20x = 47,304,132,221.04
  5. Step 5: Solve for x
    x = 47,304,132,221.04/267,617.20
  6. Step 6: Final answer
    x = 176,760.43

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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.