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Finding the Fourth Proportional to 326,536.97, 489,792.69 and 89,873.19

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Solution

The fourth proportional to 326,536.97, 489,792.69 and 89,873.19 is: 134,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,536.97 : 489,792.69 = 89,873.19 : x
  2. Step 2: Convert to fraction form
    326,536.97/489,792.69 = 89,873.19/x
  3. Step 3: Cross multiply
    326,536.97x = 489,792.69 × 89,873.19
  4. Step 4: Simplify right side
    326,536.97x = 44,019,231,488.98
  5. Step 5: Solve for x
    x = 44,019,231,488.98/326,536.97
  6. Step 6: Final answer
    x = 134,806.27

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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.