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Finding the Fourth Proportional to 267,662.36, 401,366.41 and 155,377.02

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Solution

The fourth proportional to 267,662.36, 401,366.41 and 155,377.02 is: 232,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,662.36 : 401,366.41 = 155,377.02 : x
  2. Step 2: Convert to fraction form
    267,662.36/401,366.41 = 155,377.02/x
  3. Step 3: Cross multiply
    267,662.36x = 401,366.41 × 155,377.02
  4. Step 4: Simplify right side
    267,662.36x = 62,363,116,713.90
  5. Step 5: Solve for x
    x = 62,363,116,713.90/267,662.36
  6. Step 6: Final answer
    x = 232,991.73

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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.