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Finding the Fourth Proportional to 252,274,212.15, 378,411,318.23 and 252,274,212.15

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Solution

The fourth proportional to 252,274,212.15, 378,411,318.23 and 252,274,212.15 is: 378,411,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,274,212.15 : 378,411,318.23 = 252,274,212.15 : x
  2. Step 2: Convert to fraction form
    252,274,212.15/378,411,318.23 = 252,274,212.15/x
  3. Step 3: Cross multiply
    252,274,212.15x = 378,411,318.23 × 252,274,212.15
  4. Step 4: Simplify right side
    252,274,212.15x = 95,463,417,173,854,816
  5. Step 5: Solve for x
    x = 95,463,417,173,854,816/252,274,212.15
  6. Step 6: Final answer
    x = 378,411,318.23

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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.