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Finding the Fourth Proportional to 267,638.17, 401,678.11 and 134,556.25

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Solution

The fourth proportional to 267,638.17, 401,678.11 and 134,556.25 is: 201,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,638.17 : 401,678.11 = 134,556.25 : x
  2. Step 2: Convert to fraction form
    267,638.17/401,678.11 = 134,556.25/x
  3. Step 3: Cross multiply
    267,638.17x = 401,678.11 × 134,556.25
  4. Step 4: Simplify right side
    267,638.17x = 54,048,297,843.91
  5. Step 5: Solve for x
    x = 54,048,297,843.91/267,638.17
  6. Step 6: Final answer
    x = 201,945.41

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1.5x scale

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.