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Finding the Fourth Proportional to 234,234.48, 323,243.70 and 126,804.51

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Solution

The fourth proportional to 234,234.48, 323,243.70 and 126,804.51 is: 174,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,234.48 : 323,243.70 = 126,804.51 : x
  2. Step 2: Convert to fraction form
    234,234.48/323,243.70 = 126,804.51/x
  3. Step 3: Cross multiply
    234,234.48x = 323,243.70 × 126,804.51
  4. Step 4: Simplify right side
    234,234.48x = 40,988,758,989.09
  5. Step 5: Solve for x
    x = 40,988,758,989.09/234,234.48
  6. Step 6: Final answer
    x = 174,990.29

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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.