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Finding the Fourth Proportional to 336,478.32, 504,697.68 and 126,098.64

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Solution

The fourth proportional to 336,478.32, 504,697.68 and 126,098.64 is: 189,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,478.32 : 504,697.68 = 126,098.64 : x
  2. Step 2: Convert to fraction form
    336,478.32/504,697.68 = 126,098.64/x
  3. Step 3: Cross multiply
    336,478.32x = 504,697.68 × 126,098.64
  4. Step 4: Simplify right side
    336,478.32x = 63,641,691,059.16
  5. Step 5: Solve for x
    x = 63,641,691,059.16/336,478.32
  6. Step 6: Final answer
    x = 189,140.54

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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.