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Finding the Fourth Proportional to 351,231.77, 484,699.79 and 190,086.84

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Solution

The fourth proportional to 351,231.77, 484,699.79 and 190,086.84 is: 262,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,231.77 : 484,699.79 = 190,086.84 : x
  2. Step 2: Convert to fraction form
    351,231.77/484,699.79 = 190,086.84/x
  3. Step 3: Cross multiply
    351,231.77x = 484,699.79 × 190,086.84
  4. Step 4: Simplify right side
    351,231.77x = 92,135,051,904.98
  5. Step 5: Solve for x
    x = 92,135,051,904.98/351,231.77
  6. Step 6: Final answer
    x = 262,319.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.