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Finding the Fourth Proportional to 351,346.85, 484,858.82 and 190,201.90

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Solution

The fourth proportional to 351,346.85, 484,858.82 and 190,201.90 is: 262,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,346.85 : 484,858.82 = 190,201.90 : x
  2. Step 2: Convert to fraction form
    351,346.85/484,858.82 = 190,201.90/x
  3. Step 3: Cross multiply
    351,346.85x = 484,858.82 × 190,201.90
  4. Step 4: Simplify right side
    351,346.85x = 92,221,066,632.60
  5. Step 5: Solve for x
    x = 92,221,066,632.60/351,346.85
  6. Step 6: Final answer
    x = 262,478.70

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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.