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Finding the Fourth Proportional to 226,861.60, 339,946.80 and 191,610.40

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Solution

The fourth proportional to 226,861.60, 339,946.80 and 191,610.40 is: 287,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,861.60 : 339,946.80 = 191,610.40 : x
  2. Step 2: Convert to fraction form
    226,861.60/339,946.80 = 191,610.40/x
  3. Step 3: Cross multiply
    226,861.60x = 339,946.80 × 191,610.40
  4. Step 4: Simplify right side
    226,861.60x = 65,137,342,326.72
  5. Step 5: Solve for x
    x = 65,137,342,326.72/226,861.60
  6. Step 6: Final answer
    x = 287,123.70

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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.