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Finding the Fourth Proportional to 235,036, 324,349.68 and 129,052

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Solution

The fourth proportional to 235,036, 324,349.68 and 129,052 is: 178,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,036 : 324,349.68 = 129,052 : x
  2. Step 2: Convert to fraction form
    235,036/324,349.68 = 129,052/x
  3. Step 3: Cross multiply
    235,036x = 324,349.68 × 129,052
  4. Step 4: Simplify right side
    235,036x = 41,857,974,903.36
  5. Step 5: Solve for x
    x = 41,857,974,903.36/235,036
  6. Step 6: Final answer
    x = 178,091.76

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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.