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Finding the Fourth Proportional to 313,836.39, 470,757.87 and 124,342.88

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Solution

The fourth proportional to 313,836.39, 470,757.87 and 124,342.88 is: 186,515.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,836.39 : 470,757.87 = 124,342.88 : x
  2. Step 2: Convert to fraction form
    313,836.39/470,757.87 = 124,342.88/x
  3. Step 3: Cross multiply
    313,836.39x = 470,757.87 × 124,342.88
  4. Step 4: Simplify right side
    313,836.39x = 58,535,386,984.68
  5. Step 5: Solve for x
    x = 58,535,386,984.68/313,836.39
  6. Step 6: Final answer
    x = 186,515.61

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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.