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Finding the Fourth Proportional to 319,292.66, 479,125.71 and 177,257.54

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Solution

The fourth proportional to 319,292.66, 479,125.71 and 177,257.54 is: 265,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,292.66 : 479,125.71 = 177,257.54 : x
  2. Step 2: Convert to fraction form
    319,292.66/479,125.71 = 177,257.54/x
  3. Step 3: Cross multiply
    319,292.66x = 479,125.71 × 177,257.54
  4. Step 4: Simplify right side
    319,292.66x = 84,928,644,705.35
  5. Step 5: Solve for x
    x = 84,928,644,705.35/319,292.66
  6. Step 6: Final answer
    x = 265,989.97

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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.