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Finding the Fourth Proportional to 226,520.48, 339,782.74 and 68,748.91

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Solution

The fourth proportional to 226,520.48, 339,782.74 and 68,748.91 is: 103,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,520.48 : 339,782.74 = 68,748.91 : x
  2. Step 2: Convert to fraction form
    226,520.48/339,782.74 = 68,748.91/x
  3. Step 3: Cross multiply
    226,520.48x = 339,782.74 × 68,748.91
  4. Step 4: Simplify right side
    226,520.48x = 23,359,691,990.48
  5. Step 5: Solve for x
    x = 23,359,691,990.48/226,520.48
  6. Step 6: Final answer
    x = 103,123.97

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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.