Home / 217,246.20-325,631.70-76,932.60

Finding the Fourth Proportional to 217,246.20, 325,631.70 and 76,932.60

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Solution

The fourth proportional to 217,246.20, 325,631.70 and 76,932.60 is: 115,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,246.20 : 325,631.70 = 76,932.60 : x
  2. Step 2: Convert to fraction form
    217,246.20/325,631.70 = 76,932.60/x
  3. Step 3: Cross multiply
    217,246.20x = 325,631.70 × 76,932.60
  4. Step 4: Simplify right side
    217,246.20x = 25,051,693,323.42
  5. Step 5: Solve for x
    x = 25,051,693,323.42/217,246.20
  6. Step 6: Final answer
    x = 115,314.76

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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.