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Finding the Fourth Proportional to 227,081.88, 313,376.04 and 126,479.88

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Solution

The fourth proportional to 227,081.88, 313,376.04 and 126,479.88 is: 174,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,081.88 : 313,376.04 = 126,479.88 : x
  2. Step 2: Convert to fraction form
    227,081.88/313,376.04 = 126,479.88/x
  3. Step 3: Cross multiply
    227,081.88x = 313,376.04 × 126,479.88
  4. Step 4: Simplify right side
    227,081.88x = 39,635,763,934.08
  5. Step 5: Solve for x
    x = 39,635,763,934.08/227,081.88
  6. Step 6: Final answer
    x = 174,543.93

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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.