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Finding the Fourth Proportional to 227,306.75, 313,685.53 and 125,335.91

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Solution

The fourth proportional to 227,306.75, 313,685.53 and 125,335.91 is: 172,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,306.75 : 313,685.53 = 125,335.91 : x
  2. Step 2: Convert to fraction form
    227,306.75/313,685.53 = 125,335.91/x
  3. Step 3: Cross multiply
    227,306.75x = 313,685.53 × 125,335.91
  4. Step 4: Simplify right side
    227,306.75x = 39,316,061,827.26
  5. Step 5: Solve for x
    x = 39,316,061,827.26/227,306.75
  6. Step 6: Final answer
    x = 172,964.78

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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.