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Finding the Fourth Proportional to 357,445.96, 493,274.13 and 196,311.44

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Solution

The fourth proportional to 357,445.96, 493,274.13 and 196,311.44 is: 270,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,445.96 : 493,274.13 = 196,311.44 : x
  2. Step 2: Convert to fraction form
    357,445.96/493,274.13 = 196,311.44/x
  3. Step 3: Cross multiply
    357,445.96x = 493,274.13 × 196,311.44
  4. Step 4: Simplify right side
    357,445.96x = 96,835,354,775.05
  5. Step 5: Solve for x
    x = 96,835,354,775.05/357,445.96
  6. Step 6: Final answer
    x = 270,909.08

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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.