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Finding the Fourth Proportional to 81,504,082.60, 122,256,123.90 and 81,504,082.60

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Solution

The fourth proportional to 81,504,082.60, 122,256,123.90 and 81,504,082.60 is: 122,256,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504,082.60 : 122,256,123.90 = 81,504,082.60 : x
  2. Step 2: Convert to fraction form
    81,504,082.60/122,256,123.90 = 81,504,082.60/x
  3. Step 3: Cross multiply
    81,504,082.60x = 122,256,123.90 × 81,504,082.60
  4. Step 4: Simplify right side
    81,504,082.60x = 9,964,373,220,701,434
  5. Step 5: Solve for x
    x = 9,964,373,220,701,434/81,504,082.60
  6. Step 6: Final answer
    x = 122,256,123.90

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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.