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Finding the Fourth Proportional to 290,473.96, 435,769.26 and 132,660.04

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Solution

The fourth proportional to 290,473.96, 435,769.26 and 132,660.04 is: 199,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,473.96 : 435,769.26 = 132,660.04 : x
  2. Step 2: Convert to fraction form
    290,473.96/435,769.26 = 132,660.04/x
  3. Step 3: Cross multiply
    290,473.96x = 435,769.26 × 132,660.04
  4. Step 4: Simplify right side
    290,473.96x = 57,809,167,462.37
  5. Step 5: Solve for x
    x = 57,809,167,462.37/290,473.96
  6. Step 6: Final answer
    x = 199,016.69

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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.