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Finding the Fourth Proportional to 326,867.58, 490,020.53 and 113,607.79

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Solution

The fourth proportional to 326,867.58, 490,020.53 and 113,607.79 is: 170,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,867.58 : 490,020.53 = 113,607.79 : x
  2. Step 2: Convert to fraction form
    326,867.58/490,020.53 = 113,607.79/x
  3. Step 3: Cross multiply
    326,867.58x = 490,020.53 × 113,607.79
  4. Step 4: Simplify right side
    326,867.58x = 55,670,147,674.84
  5. Step 5: Solve for x
    x = 55,670,147,674.84/326,867.58
  6. Step 6: Final answer
    x = 170,314.07

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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.