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Finding the Fourth Proportional to 234,234.71, 323,244 and 126,804.73

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Solution

The fourth proportional to 234,234.71, 323,244 and 126,804.73 is: 174,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,234.71 : 323,244 = 126,804.73 : x
  2. Step 2: Convert to fraction form
    234,234.71/323,244 = 126,804.73/x
  3. Step 3: Cross multiply
    234,234.71x = 323,244 × 126,804.73
  4. Step 4: Simplify right side
    234,234.71x = 40,988,868,144.12
  5. Step 5: Solve for x
    x = 40,988,868,144.12/234,234.71
  6. Step 6: Final answer
    x = 174,990.58

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1.5x scale

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.