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Finding the Fourth Proportional to 351,141.90, 484,572.38 and 189,993.42

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Solution

The fourth proportional to 351,141.90, 484,572.38 and 189,993.42 is: 262,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,141.90 : 484,572.38 = 189,993.42 : x
  2. Step 2: Convert to fraction form
    351,141.90/484,572.38 = 189,993.42/x
  3. Step 3: Cross multiply
    351,141.90x = 484,572.38 × 189,993.42
  4. Step 4: Simplify right side
    351,141.90x = 92,065,563,713.74
  5. Step 5: Solve for x
    x = 92,065,563,713.74/351,141.90
  6. Step 6: Final answer
    x = 262,189.06

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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.