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Finding the Fourth Proportional to 336,343.20, 504,709.20 and 126,002.40

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Solution

The fourth proportional to 336,343.20, 504,709.20 and 126,002.40 is: 189,076.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,343.20 : 504,709.20 = 126,002.40 : x
  2. Step 2: Convert to fraction form
    336,343.20/504,709.20 = 126,002.40/x
  3. Step 3: Cross multiply
    336,343.20x = 504,709.20 × 126,002.40
  4. Step 4: Simplify right side
    336,343.20x = 63,594,570,502.08
  5. Step 5: Solve for x
    x = 63,594,570,502.08/336,343.20
  6. Step 6: Final answer
    x = 189,076.43

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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.