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Finding the Fourth Proportional to 324,911.73, 448,376.70 and 181,671.78

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Solution

The fourth proportional to 324,911.73, 448,376.70 and 181,671.78 is: 250,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,911.73 : 448,376.70 = 181,671.78 : x
  2. Step 2: Convert to fraction form
    324,911.73/448,376.70 = 181,671.78/x
  3. Step 3: Cross multiply
    324,911.73x = 448,376.70 × 181,671.78
  4. Step 4: Simplify right side
    324,911.73x = 81,457,393,199.53
  5. Step 5: Solve for x
    x = 81,457,393,199.53/324,911.73
  6. Step 6: Final answer
    x = 250,706.22

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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.