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Finding the Fourth Proportional to 252,373,090.80, 378,559,636.20 and 252,373,090.80

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Solution

The fourth proportional to 252,373,090.80, 378,559,636.20 and 252,373,090.80 is: 378,559,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,373,090.80 : 378,559,636.20 = 252,373,090.80 : x
  2. Step 2: Convert to fraction form
    252,373,090.80/378,559,636.20 = 252,373,090.80/x
  3. Step 3: Cross multiply
    252,373,090.80x = 378,559,636.20 × 252,373,090.80
  4. Step 4: Simplify right side
    252,373,090.80x = 95,538,265,439,917,568
  5. Step 5: Solve for x
    x = 95,538,265,439,917,568/252,373,090.80
  6. Step 6: Final answer
    x = 378,559,636.20

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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.