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Finding the Fourth Proportional to 326,676.30, 490,016.94 and 90,031.96

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Solution

The fourth proportional to 326,676.30, 490,016.94 and 90,031.96 is: 135,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,676.30 : 490,016.94 = 90,031.96 : x
  2. Step 2: Convert to fraction form
    326,676.30/490,016.94 = 90,031.96/x
  3. Step 3: Cross multiply
    326,676.30x = 490,016.94 × 90,031.96
  4. Step 4: Simplify right side
    326,676.30x = 44,117,185,541.40
  5. Step 5: Solve for x
    x = 44,117,185,541.40/326,676.30
  6. Step 6: Final answer
    x = 135,048.63

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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.