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Finding the Fourth Proportional to 252,236,618.10, 378,354,927.15 and 252,236,618.10

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Solution

The fourth proportional to 252,236,618.10, 378,354,927.15 and 252,236,618.10 is: 378,354,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,236,618.10 : 378,354,927.15 = 252,236,618.10 : x
  2. Step 2: Convert to fraction form
    252,236,618.10/378,354,927.15 = 252,236,618.10/x
  3. Step 3: Cross multiply
    252,236,618.10x = 378,354,927.15 × 252,236,618.10
  4. Step 4: Simplify right side
    252,236,618.10x = 95,434,967,265,787,856
  5. Step 5: Solve for x
    x = 95,434,967,265,787,856/252,236,618.10
  6. Step 6: Final answer
    x = 378,354,927.15

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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.