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Finding the Fourth Proportional to 326,687.63, 490,049.91 and 116,325.59

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Solution

The fourth proportional to 326,687.63, 490,049.91 and 116,325.59 is: 174,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,687.63 : 490,049.91 = 116,325.59 : x
  2. Step 2: Convert to fraction form
    326,687.63/490,049.91 = 116,325.59/x
  3. Step 3: Cross multiply
    326,687.63x = 490,049.91 × 116,325.59
  4. Step 4: Simplify right side
    326,687.63x = 57,005,342,459.95
  5. Step 5: Solve for x
    x = 57,005,342,459.95/326,687.63
  6. Step 6: Final answer
    x = 174,494.96

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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.