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Finding the Fourth Proportional to 227,081.56, 313,382.18 and 126,479.56

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Solution

The fourth proportional to 227,081.56, 313,382.18 and 126,479.56 is: 174,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,081.56 : 313,382.18 = 126,479.56 : x
  2. Step 2: Convert to fraction form
    227,081.56/313,382.18 = 126,479.56/x
  3. Step 3: Cross multiply
    227,081.56x = 313,382.18 × 126,479.56
  4. Step 4: Simplify right side
    227,081.56x = 39,636,440,238.24
  5. Step 5: Solve for x
    x = 39,636,440,238.24/227,081.56
  6. Step 6: Final answer
    x = 174,547.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.