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Finding the Fourth Proportional to 267,570.20, 401,354.30 and 67,890.08

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Solution

The fourth proportional to 267,570.20, 401,354.30 and 67,890.08 is: 101,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,570.20 : 401,354.30 = 67,890.08 : x
  2. Step 2: Convert to fraction form
    267,570.20/401,354.30 = 67,890.08/x
  3. Step 3: Cross multiply
    267,570.20x = 401,354.30 × 67,890.08
  4. Step 4: Simplify right side
    267,570.20x = 27,247,975,535.34
  5. Step 5: Solve for x
    x = 27,247,975,535.34/267,570.20
  6. Step 6: Final answer
    x = 101,834.87

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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.