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Finding the Fourth Proportional to 326,210.56, 489,198.44 and 112,920.52

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Solution

The fourth proportional to 326,210.56, 489,198.44 and 112,920.52 is: 169,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,210.56 : 489,198.44 = 112,920.52 : x
  2. Step 2: Convert to fraction form
    326,210.56/489,198.44 = 112,920.52/x
  3. Step 3: Cross multiply
    326,210.56x = 489,198.44 × 112,920.52
  4. Step 4: Simplify right side
    326,210.56x = 55,240,542,227.99
  5. Step 5: Solve for x
    x = 55,240,542,227.99/326,210.56
  6. Step 6: Final answer
    x = 169,340.14

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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.