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Finding the Fourth Proportional to 267,200.80, 401,060.40 and 134,231.20

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Solution

The fourth proportional to 267,200.80, 401,060.40 and 134,231.20 is: 201,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,200.80 : 401,060.40 = 134,231.20 : x
  2. Step 2: Convert to fraction form
    267,200.80/401,060.40 = 134,231.20/x
  3. Step 3: Cross multiply
    267,200.80x = 401,060.40 × 134,231.20
  4. Step 4: Simplify right side
    267,200.80x = 53,834,818,764.48
  5. Step 5: Solve for x
    x = 53,834,818,764.48/267,200.80
  6. Step 6: Final answer
    x = 201,477.01

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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.