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Finding the Fourth Proportional to 351,212.79, 484,674.50 and 190,069

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Solution

The fourth proportional to 351,212.79, 484,674.50 and 190,069 is: 262,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,212.79 : 484,674.50 = 190,069 : x
  2. Step 2: Convert to fraction form
    351,212.79/484,674.50 = 190,069/x
  3. Step 3: Cross multiply
    351,212.79x = 484,674.50 × 190,069
  4. Step 4: Simplify right side
    351,212.79x = 92,121,597,540.50
  5. Step 5: Solve for x
    x = 92,121,597,540.50/351,212.79
  6. Step 6: Final answer
    x = 262,295.68

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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.