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Finding the Fourth Proportional to 308,306.29, 462,179.17 and 118,645.72

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Solution

The fourth proportional to 308,306.29, 462,179.17 and 118,645.72 is: 177,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,306.29 : 462,179.17 = 118,645.72 : x
  2. Step 2: Convert to fraction form
    308,306.29/462,179.17 = 118,645.72/x
  3. Step 3: Cross multiply
    308,306.29x = 462,179.17 × 118,645.72
  4. Step 4: Simplify right side
    308,306.29x = 54,835,580,393.65
  5. Step 5: Solve for x
    x = 54,835,580,393.65/308,306.29
  6. Step 6: Final answer
    x = 177,860.73

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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.