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Finding the Fourth Proportional to 267,405.20, 401,010.60 and 134,241.20

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Solution

The fourth proportional to 267,405.20, 401,010.60 and 134,241.20 is: 201,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,405.20 : 401,010.60 = 134,241.20 : x
  2. Step 2: Convert to fraction form
    267,405.20/401,010.60 = 134,241.20/x
  3. Step 3: Cross multiply
    267,405.20x = 401,010.60 × 134,241.20
  4. Step 4: Simplify right side
    267,405.20x = 53,832,144,156.72
  5. Step 5: Solve for x
    x = 53,832,144,156.72/267,405.20
  6. Step 6: Final answer
    x = 201,313.00

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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.