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Finding the Fourth Proportional to 214,940.53, 321,990.39 and 177,044.21

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Solution

The fourth proportional to 214,940.53, 321,990.39 and 177,044.21 is: 265,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,940.53 : 321,990.39 = 177,044.21 : x
  2. Step 2: Convert to fraction form
    214,940.53/321,990.39 = 177,044.21/x
  3. Step 3: Cross multiply
    214,940.53x = 321,990.39 × 177,044.21
  4. Step 4: Simplify right side
    214,940.53x = 57,006,534,225.14
  5. Step 5: Solve for x
    x = 57,006,534,225.14/214,940.53
  6. Step 6: Final answer
    x = 265,220.03

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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.