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Finding the Fourth Proportional to 267,914.20, 401,725.30 and 80,901.40

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Solution

The fourth proportional to 267,914.20, 401,725.30 and 80,901.40 is: 121,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,914.20 : 401,725.30 = 80,901.40 : x
  2. Step 2: Convert to fraction form
    267,914.20/401,725.30 = 80,901.40/x
  3. Step 3: Cross multiply
    267,914.20x = 401,725.30 × 80,901.40
  4. Step 4: Simplify right side
    267,914.20x = 32,500,139,185.42
  5. Step 5: Solve for x
    x = 32,500,139,185.42/267,914.20
  6. Step 6: Final answer
    x = 121,308.01

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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.