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Finding the Fourth Proportional to 252,245,388.60, 378,368,082.90 and 252,245,388.60

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Solution

The fourth proportional to 252,245,388.60, 378,368,082.90 and 252,245,388.60 is: 378,368,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,245,388.60 : 378,368,082.90 = 252,245,388.60 : x
  2. Step 2: Convert to fraction form
    252,245,388.60/378,368,082.90 = 252,245,388.60/x
  3. Step 3: Cross multiply
    252,245,388.60x = 378,368,082.90 × 252,245,388.60
  4. Step 4: Simplify right side
    252,245,388.60x = 95,441,604,104,947,504
  5. Step 5: Solve for x
    x = 95,441,604,104,947,504/252,245,388.60
  6. Step 6: Final answer
    x = 378,368,082.90

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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.