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Finding the Fourth Proportional to 216,154.44, 324,009.96 and 82,998.84

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Solution

The fourth proportional to 216,154.44, 324,009.96 and 82,998.84 is: 124,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,154.44 : 324,009.96 = 82,998.84 : x
  2. Step 2: Convert to fraction form
    216,154.44/324,009.96 = 82,998.84/x
  3. Step 3: Cross multiply
    216,154.44x = 324,009.96 × 82,998.84
  4. Step 4: Simplify right side
    216,154.44x = 26,892,450,828.45
  5. Step 5: Solve for x
    x = 26,892,450,828.45/216,154.44
  6. Step 6: Final answer
    x = 124,413.13

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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.