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Finding the Fourth Proportional to 267,655.57, 401,520.08 and 155,388.49

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Solution

The fourth proportional to 267,655.57, 401,520.08 and 155,388.49 is: 233,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,655.57 : 401,520.08 = 155,388.49 : x
  2. Step 2: Convert to fraction form
    267,655.57/401,520.08 = 155,388.49/x
  3. Step 3: Cross multiply
    267,655.57x = 401,520.08 × 155,388.49
  4. Step 4: Simplify right side
    267,655.57x = 62,391,598,158.94
  5. Step 5: Solve for x
    x = 62,391,598,158.94/267,655.57
  6. Step 6: Final answer
    x = 233,104.05

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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.