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Finding the Fourth Proportional to 324,351.68, 486,526.37 and 87,694.31

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Solution

The fourth proportional to 324,351.68, 486,526.37 and 87,694.31 is: 131,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,351.68 : 486,526.37 = 87,694.31 : x
  2. Step 2: Convert to fraction form
    324,351.68/486,526.37 = 87,694.31/x
  3. Step 3: Cross multiply
    324,351.68x = 486,526.37 × 87,694.31
  4. Step 4: Simplify right side
    324,351.68x = 42,665,595,091.80
  5. Step 5: Solve for x
    x = 42,665,595,091.80/324,351.68
  6. Step 6: Final answer
    x = 131,541.16

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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.