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Finding the Fourth Proportional to 336,479.32, 504,699.18 and 126,099.64

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Solution

The fourth proportional to 336,479.32, 504,699.18 and 126,099.64 is: 189,142.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,479.32 : 504,699.18 = 126,099.64 : x
  2. Step 2: Convert to fraction form
    336,479.32/504,699.18 = 126,099.64/x
  3. Step 3: Cross multiply
    336,479.32x = 504,699.18 × 126,099.64
  4. Step 4: Simplify right side
    336,479.32x = 63,642,384,906.30
  5. Step 5: Solve for x
    x = 63,642,384,906.30/336,479.32
  6. Step 6: Final answer
    x = 189,142.04

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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.