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Finding the Fourth Proportional to 366,481.70, 549,528.15 and 129,832.10

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Solution

The fourth proportional to 366,481.70, 549,528.15 and 129,832.10 is: 194,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,481.70 : 549,528.15 = 129,832.10 : x
  2. Step 2: Convert to fraction form
    366,481.70/549,528.15 = 129,832.10/x
  3. Step 3: Cross multiply
    366,481.70x = 549,528.15 × 129,832.10
  4. Step 4: Simplify right side
    366,481.70x = 71,346,393,723.62
  5. Step 5: Solve for x
    x = 71,346,393,723.62/366,481.70
  6. Step 6: Final answer
    x = 194,679.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.