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Finding the Fourth Proportional to 234,036.21, 322,969.68 and 126,606

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Solution

The fourth proportional to 234,036.21, 322,969.68 and 126,606 is: 174,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,036.21 : 322,969.68 = 126,606 : x
  2. Step 2: Convert to fraction form
    234,036.21/322,969.68 = 126,606/x
  3. Step 3: Cross multiply
    234,036.21x = 322,969.68 × 126,606
  4. Step 4: Simplify right side
    234,036.21x = 40,889,899,306.08
  5. Step 5: Solve for x
    x = 40,889,899,306.08/234,036.21
  6. Step 6: Final answer
    x = 174,716.12

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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.