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Finding the Fourth Proportional to 267,138.86, 400,713.48 and 124,905.56

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Solution

The fourth proportional to 267,138.86, 400,713.48 and 124,905.56 is: 187,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,138.86 : 400,713.48 = 124,905.56 : x
  2. Step 2: Convert to fraction form
    267,138.86/400,713.48 = 124,905.56/x
  3. Step 3: Cross multiply
    267,138.86x = 400,713.48 × 124,905.56
  4. Step 4: Simplify right side
    267,138.86x = 50,051,339,615.38
  5. Step 5: Solve for x
    x = 50,051,339,615.38/267,138.86
  6. Step 6: Final answer
    x = 187,360.76

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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.