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Finding the Fourth Proportional to 351,763.83, 485,432.19 and 190,614.74

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Solution

The fourth proportional to 351,763.83, 485,432.19 and 190,614.74 is: 263,047.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,763.83 : 485,432.19 = 190,614.74 : x
  2. Step 2: Convert to fraction form
    351,763.83/485,432.19 = 190,614.74/x
  3. Step 3: Cross multiply
    351,763.83x = 485,432.19 × 190,614.74
  4. Step 4: Simplify right side
    351,763.83x = 92,530,528,257.32
  5. Step 5: Solve for x
    x = 92,530,528,257.32/351,763.83
  6. Step 6: Final answer
    x = 263,047.31

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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.